diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000000000000000000000000000000..7fb0c3b44b46ae07a0d0773d53ce92d37f4b51ee
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+*.safetensors filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
+*.ttf filter=lfs diff=lfs merge=lfs -text
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..ce18e5ba29e6ad24f24b0bfaa4a682a6cf824ff6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,424 @@
+MERT2 model-weight license
+
+The MERT2-30s and MERT2-FS checkpoint weights in model.safetensors are
+licensed under Creative Commons Attribution-NonCommercial 4.0 International
+(CC BY-NC 4.0): https://creativecommons.org/licenses/by-nc/4.0/
+
+For attribution, identify MERT2, the model name, and its source repository:
+https://huggingface.co/m-a-p/MERT-v2-30s
+https://huggingface.co/m-a-p/MERT-v2-FullSong
+
+This weight license does not replace separately applicable licenses for code
+or dependencies. See THIRD_PARTY_NOTICES.md.
+
+The official license text follows without modification.
+Source: https://creativecommons.org/licenses/by-nc/4.0/legalcode.txt
+
+Attribution-NonCommercial 4.0 International
+
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diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..7a64836bbddb830014089603dd2d374106841fe9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,280 @@
+---
+license: cc-by-nc-4.0
+library_name: transformers
+base_model: m-a-p/MERT-v2-FullSong
+base_model_relation: adapter
+tags:
+- arxiv:2610.05336
+- arxiv:2609.33757
+- audio
+- music
+- music-transcription
+- midi
+- abc-notation
+- custom_code
+---
+
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CSS required: load abcjs-audio.css
',f+="
\n",e.innerHTML=f}(r.parent,r.options),function(e){var t=!!e.options.loopHandler,r=!!e.options.restartHandler,n=!!e.options.playHandler||!!e.options.playPromiseHandler,a=!!e.options.progressHandler,i=!!e.options.warpHandler,s=e.parent.querySelector(".abcjs-midi-start");t&&e.parent.querySelector(".abcjs-midi-loop").addEventListener("click",(function(t){u(e.options.loopHandler,t,s,e.options.afterResume)})),r&&e.parent.querySelector(".abcjs-midi-reset").addEventListener("click",(function(t){u(e.options.restartHandler,t,s,e.options.afterResume)})),n&&s.addEventListener("click",(function(t){u(e.options.playPromiseHandler||e.options.playHandler,t,s,e.options.afterResume,!!e.options.playPromiseHandler)})),a&&e.parent.querySelector(".abcjs-midi-progress-background").addEventListener("click",(function(t){u(e.options.progressHandler,t,s,e.options.afterResume)})),i&&e.parent.querySelector(".abcjs-midi-tempo").addEventListener("change",(function(t){u(e.options.warpHandler,t,s,e.options.afterResume)}))}(r),r.disable=function(e){var t=r.parent.querySelector(".abcjs-inline-audio");e?t.classList.add("abcjs-disabled"):t.classList.remove("abcjs-disabled")},r.setWarp=function(e,t){r.parent.querySelector(".abcjs-midi-tempo").value=Math.round(t),r.setTempo(e)},r.setTempo=function(e){var t=r.parent.querySelector(".abcjs-midi-current-tempo");t&&(t.innerHTML=Math.round(e))},r.resetAll=function(){for(var e=r.parent.querySelectorAll(".abcjs-pushed"),t=0;t0){if(e.debugCallback&&e.debugCallback("pending "+JSON.stringify(l)),i?i*=2:i=50,i<9e4)return new Promise((function(t,n){setTimeout((function(){var s=[];for(u=0;u0?e.audioBuffers[0].duration:0;return{status:s().state,duration:t}},o=s().currentTime,c=e.millisecondsPerMeasure/1e3/e.meterSize;if(e.duration=e.flattened.totalDuration*c,e.duration<=0)return e.audioBuffers=[],r({status:"empty",seconds:0});e.duration+=t;var l=Math.floor(s().sampleRate*e.duration);e.stop();var h=a(e.flattened);e.options.swing&&function(e,t,r,n){if(!(4!=r.den&&8!=r.den||(t=parseFloat(t),isNaN(t)||t<=50))){t>75&&(t=75),t=t/50-1;var a=0,i=.25;8===r.den&&(i/=2);for(var s=i/2,o=s*t,c=0;c=l[h].start+s)){var d=u.start;u.start+=o,u.volume*=1+a,h>0&&l[h-1].end==d&&(l[h-1].end=u.start,l[h-1].volume*=1-a)}}}}(h,e.options.swing,e.meterFraction,e.pickupLength),e.sequenceCallback&&e.sequenceCallback(h,e.callbackContext);var d=function(e,t){if(null==t)return null;var r=[];if(t.length){for(var n=0;n1&&(a=1),r.push(a)}else r.push(0);return r}var i=parseFloat(t);if(i*(e-1)>2)return null;for(var s=e%2==0,o=s?0-i/2:0,c=o+i,l=0;lr?d[r]:0;t.forEach((function(t){var r=t.instrument+":"+t.pitch+":"+t.volume+":"+Math.round(1e3*(t.end-t.start))/1e3+":"+n+":"+c+":"+(t.cents?t.cents:0);e.debugCallback&&e.debugCallback("noteMapTrack "+r),f[r]||(f[r]=[]),f[r].push(t.start)}))}));for(var p=[],m=s().createBuffer(2,l,s().sampleRate),g=0;g';t.preTextDownload&&(i+=t.preTextDownload);var s,o,c=e.metaText&&e.metaText.title?e.metaText.title:"Untitled";return s=t.downloadLabel&&(o=t.downloadLabel)&&"[object Function]"==={}.toString.call(o)?t.downloadLabel(e,n):t.downloadLabel?t.downloadLabel.replace(/%T/,c):'Download MIDI for "'+c+'"',c=c.toLowerCase().replace(/'/g,"").replace(/\W/g,"_").replace(/__/g,"_"),i+=''+s+"",t.postTextDownload&&(i+=t.postTextDownload),i+""};e.exports=function(e,t){var r={};if(t)for(var s in t)t.hasOwnProperty(s)&&(r[s]=t[s]);function o(e,t,n){var s=a(t,r);switch(r.midiOutputType){case"encoded":return s;case"binary":var o=s.replace("data:audio/midi,","");o=(o=o.replace(/MThd/g,"%4d%54%68%64")).replace(/MTrk/g,"%4d%54%72%6b");for(var c=new ArrayBuffer(o.length/3),l=new Uint8Array(c),h=0;h4)for(a=a.toLowerCase(),t-=5;t>0;)a+="'",t--;else for(;t<4;)a+=",",t++;return a}}},522:function(e){e.exports={21:"A0",22:"Bb0",23:"B0",24:"C1",25:"Db1",26:"D1",27:"Eb1",28:"E1",29:"F1",30:"Gb1",31:"G1",32:"Ab1",33:"A1",34:"Bb1",35:"B1",36:"C2",37:"Db2",38:"D2",39:"Eb2",40:"E2",41:"F2",42:"Gb2",43:"G2",44:"Ab2",45:"A2",46:"Bb2",47:"B2",48:"C3",49:"Db3",50:"D3",51:"Eb3",52:"E3",53:"F3",54:"Gb3",55:"G3",56:"Ab3",57:"A3",58:"Bb3",59:"B3",60:"C4",61:"Db4",62:"D4",63:"Eb4",64:"E4",65:"F4",66:"Gb4",67:"G4",68:"Ab4",69:"A4",70:"Bb4",71:"B4",72:"C5",73:"Db5",74:"D5",75:"Eb5",76:"E5",77:"F5",78:"Gb5",79:"G5",80:"Ab5",81:"A5",82:"Bb5",83:"B5",84:"C6",85:"Db6",86:"D6",87:"Eb6",88:"E6",89:"F6",90:"Gb6",91:"G6",92:"Ab6",93:"A6",94:"Bb6",95:"B6",96:"C7",97:"Db7",98:"D7",99:"Eb7",100:"E7",101:"F7",102:"Gb7",103:"G7",104:"Ab7",105:"A7",106:"Bb7",107:"B7",108:"C8",109:"Db8",110:"D8",111:"Eb8",112:"E8",113:"F8",114:"Gb8",115:"G8",116:"Ab8",117:"A8",118:"Bb8",119:"B8",120:"C9",121:"Db9"}},5058:function(e){var t={f0:"_C",n0:"=C",s0:"^C",x0:"C",f1:"_D",n1:"=D",s1:"^D",x1:"D",f2:"_E",n2:"=E",s2:"^E",x2:"E",f3:"_F",n3:"=F",s3:"^F",x3:"F",f4:"_G",n4:"=G",s4:"^G",x4:"G",f5:"_A",n5:"=A",s5:"^A",x5:"A",f6:"_B",n6:"=B",s6:"^B",x6:"B",f7:"_c",n7:"=c",s7:"^c",x7:"c",f8:"_d",n8:"=d",s8:"^d",x8:"d",f9:"_e",n9:"=e",s9:"^e",x9:"e",f10:"_f",n10:"=f",s10:"^f",x10:"f",f11:"_g",n11:"=g",s11:"^g",x11:"g",f12:"_a",n12:"=a",s12:"^a",x12:"a",f13:"_b",n13:"=b",s13:"^b",x13:"b",f14:"_c'",n14:"=c'",s14:"^c'",x14:"c'",f15:"_d'",n15:"=d'",s15:"^d'",x15:"d'",f16:"_e'",n16:"=e'",s16:"^e'",x16:"e'"};e.exports=function(e){var r=(e.accidental?e.accidental[0]:"x")+e.verticalPos;return t[r]}},4586:function(e,t,r){var n=r(4771),a=r(522),i=r(2710),s=function(e,t,r){for(var n=0;n<2;n++)for(var a=t.getChannelData(n),i=e.getChannelData(n),s=0;s0&&"bar"===e[r].el_type&&"bar"===t[t.length-1].el_type&&r++;for(var i=r;i<=a;i++){var s,o=!1;if("key"===e[i].el_type||"meter"===e[i].el_type||"tempo"===e[i].el_type||"instrument"===e[i].el_type){for(s=t.length-1;s>=0&&t[s].el_type!==e[i].el_type;)s--;s>=0&&("key"===e[i].el_type&&(h=e[i],u=t[s],h.accidentals&&u.accidentals&&JSON.stringify(h.accidentals)===JSON.stringify(u.accidentals))||"meter"===e[i].el_type&&e[i].num===t[s].num&&e[i].den===t[s].den||"instrument"===e[i].el_type&&e[i].program===t[s].program||"tempo"===e[i].el_type&&e[i].qpm===t[s].qpm)&&(o=!0)}o||t.push((c=e[i],l=void 0,(l=Object.assign({},c)).pitches&&(l.pitches=n.cloneArray(l.pitches)),l))}var c,l,h,u}e.exports=function(e){this.sections=[{type:"startRepeat",index:-1}],this.addBar=function(t){var r=e.length-1,n="bar_left_repeat"===t.type||"bar_dbl_repeat"===t.type,a="bar_right_repeat"===t.type||"bar_dbl_repeat"===t.type,i=t.startEnding?function(e){var t,r,n,a=[];if(e.indexOf(",")>0)for(r=e.split(","),n=0;n0&&a.push(t);else if(e.indexOf("-")>0){r=e.split("-");var i=parseInt(r[0],10),s=parseInt(r[1],10);for(n=i;n<=s;n++)a.push(n)}else(t=parseInt(e,10))>0&&a.push(t);return a}(t.startEnding):void 0;a&&(this.sections.length>0&&"endRepeat"===this.sections[this.sections.length-1].type&&this.sections.push({type:"startRepeat",index:this.sections[this.sections.length-1].index}),this.sections.push({type:"endRepeat",index:r})),n&&this.sections.push({type:"startRepeat",index:r}),i&&this.sections.push({type:"startEnding",index:r,endings:i})},this.resolveRepeats=function(){var t,r=this.sections[this.sections.length-1],n=e.length-1;if("startRepeat"===r.type?r.end=n:r.index+10)for(t=0;t0&&a(e,h,p.start,p.end),u=Math.max(u,p.end))}else a(e,h,f.common.start,f.common.end)}return h}}},4771:function(e){e.exports={}},5049:function(e,t,r){var n=r(8702);e.exports=function(){if(!window.Promise)return!1;if(!(window.AudioContext||window.webkitAudioContext||navigator.mozAudioContext||navigator.msAudioContext))return!1;var e=n();return e?void 0!==e.resume:void 0}},3450:function(e,t,r){var n=r(6313),a=r(5594),i=r(5681),s=r(8702);e.exports=function(){var e=this;e.warp=100,e.cursorControl=null,e.visualObj=null,e.timer=null,e.midiBuffer=null,e.options=null,e.currentTempo=null,e.control=null,e.isLooping=!1,e.isStarted=!1,e.isLoaded=!1,e.isLoading=!1,e.load=function(t,r,a){a||(a={}),void 0===a.displayPlay&&(a.displayPlay=!0),void 0===a.displayProgress&&(a.displayProgress=!0),e.control=new n(t,{loopHandler:a.displayLoop?e.toggleLoop:void 0,restartHandler:a.displayRestart?e.restart:void 0,playPromiseHandler:a.displayPlay?e.play:void 0,progressHandler:a.displayProgress?e.randomAccess:void 0,warpHandler:a.displayWarp?e.onWarp:void 0,afterResume:e.init}),e.cursorControl=r,e.disable(!0)},e.disable=function(t){e.control&&e.control.disable(t)},e.setTune=function(t,r,n){return e.visualObj=t,e.disable(!1),e.options=n||{},e.control&&(e.pause(),e.setProgress(0,1),e.control.resetAll(),e.restart(),e.isStarted=!1),e.isLooping=!1,r?e.go():Promise.resolve({status:"no-audio-context"})},e.go=function(){e.isLoading=!0;var t,r=100*e.visualObj.millisecondsPerMeasure()/e.warp;return e.currentTempo=Math.round(e.visualObj.getBeatsPerMeasure()/r*6e4),e.control&&e.control.setTempo(e.currentTempo),e.percent=0,e.midiBuffer||(e.midiBuffer=new a),s().resume().then((function(t){return e.midiBuffer.init({visualObj:e.visualObj,options:e.options,millisecondsPerMeasure:r})})).then((function(r){return t=r,e.midiBuffer.prime()})).then((function(){var r=16;return e.cursorControl&&void 0!==e.cursorControl.beatSubdivisions&&parseInt(e.cursorControl.beatSubdivisions,10)>=1&&parseInt(e.cursorControl.beatSubdivisions,10)<=64&&(r=parseInt(e.cursorControl.beatSubdivisions,10)),e.timer=new i(e.visualObj,{beatCallback:e.beatCallback,eventCallback:e.eventCallback,lineEndCallback:e.lineEndCallback,qpm:e.currentTempo,extraMeasuresAtBeginning:e.cursorControl?e.cursorControl.extraMeasuresAtBeginning:void 0,lineEndAnticipation:e.cursorControl?e.cursorControl.lineEndAnticipation:0,beatSubdivisions:r}),e.cursorControl&&e.cursorControl.onReady&&"function"==typeof e.cursorControl.onReady&&e.cursorControl.onReady(e),e.isLoaded=!0,e.isLoading=!1,Promise.resolve({status:"created",notesStatus:t})}))},e.destroy=function(){e.timer&&(e.timer.reset(),e.timer.stop(),e.timer=null),e.midiBuffer&&(e.midiBuffer.stop(),e.midiBuffer=null),e.setProgress(0,1),e.control&&e.control.resetAll()},e.play=function(){return e.runWhenReady(e._play,void 0)},e.runWhenReady=function(t,r){return e.visualObj?e.isLoading?(n=500,new Promise((function(e){setTimeout(e,n)}))).then((function(){return e.isLoading?e.runWhenReady(t,r):t(r)})):e.isLoaded?t(r):e.go().then((function(){return t(r)})):Promise.resolve({status:"loading"});var n},e._play=function(){return s().resume().then((function(){return e.isStarted=!e.isStarted,e.isStarted?(e.cursorControl&&e.cursorControl.onStart&&"function"==typeof e.cursorControl.onStart&&e.cursorControl.onStart(),e.midiBuffer.start(),e.timer.start(e.percent),e.control&&e.control.pushPlay(!0)):e.pause(),Promise.resolve({status:"ok"})}))},e.pause=function(){e.timer&&(e.timer.pause(),e.midiBuffer.pause(),e.control&&e.control.pushPlay(!1))},e.toggleLoop=function(){e.isLooping=!e.isLooping,e.control&&e.control.pushLoop(e.isLooping)},e.restart=function(){e.timer&&(e.timer.setProgress(0),e.midiBuffer.seek(0))},e.randomAccess=function(t){return e.runWhenReady(e._randomAccess,t)},e._randomAccess=function(t){var r=t.target.classList.contains("abcjs-midi-progress-indicator")?t.target.parentNode:t.target,n=(t.x-r.getBoundingClientRect().left)/r.offsetWidth;return n<0&&(n=0),n>1&&(n=1),e.seek(n),Promise.resolve({status:"ok"})},e.seek=function(t,r){e.timer&&e.midiBuffer&&(e.timer.setProgress(t,r),e.midiBuffer.seek(t,r))},e.setWarp=function(t){if(parseInt(t,10)>0){e.warp=parseInt(t,10);var r=e.isStarted,n=e.percent;return e.destroy(),e.isStarted=!1,e.go().then((function(){return e.setProgress(n,1e3*e.midiBuffer.duration),e.control&&e.control.setWarp(e.currentTempo,e.warp),r?e.play().then((function(){return e.seek(n),Promise.resolve()})):(e.seek(n),Promise.resolve())}))}return Promise.resolve()},e.onWarp=function(t){var r=t.target.value;return e.setWarp(r)},e.setProgress=function(t,r){e.percent=t,e.control&&e.control.setProgress(t,r)},e.finished=function(){if(e.timer.reset(),e.isLooping)return e.timer.start(0),e.midiBuffer.finished(),e.midiBuffer.start(),"continue";e.timer.stop(),e.isStarted&&(e.control&&e.control.pushPlay(!1),e.isStarted=!1,e.midiBuffer.finished(),e.cursorControl&&e.cursorControl.onFinished&&"function"==typeof e.cursorControl.onFinished&&e.cursorControl.onFinished(),e.setProgress(0,1))},e.beatCallback=function(t,r,n,a){var i=t/r;e.setProgress(i,n),e.cursorControl&&e.cursorControl.onBeat&&"function"==typeof e.cursorControl.onBeat&&e.cursorControl.onBeat(t,r,n,a)},e.eventCallback=function(t){if(!t)return e.finished();e.cursorControl&&e.cursorControl.onEvent&&"function"==typeof e.cursorControl.onEvent&&e.cursorControl.onEvent(t)},e.lineEndCallback=function(t,r){e.cursorControl&&e.cursorControl.onLineEnd&&"function"==typeof e.cursorControl.onLineEnd&&e.cursorControl.onLineEnd(t,r)},e.getUrl=function(){return e.midiBuffer.download()},e.download=function(t){var r=e.getUrl(),n=document.createElement("a");document.body.appendChild(n),n.setAttribute("style","display: none;"),n.href=r,n.download=t||"output.wav",n.click(),window.URL.revokeObjectURL(r),document.body.removeChild(n)}}},2029:function(e){e.exports=function(){var e=this;e.tracks=[],e.totalDuration=0,e.currentInstrument=[],e.starts=[],e.addTrack=function(){return e.tracks.push([]),e.currentInstrument.push(0),e.starts.push(0),e.tracks.length-1},e.setInstrument=function(t,r){e.tracks[t].push({channel:0,cmd:"program",instrument:r}),e.currentInstrument[t]=r},e.appendNote=function(t,r,n,a,i){var s={cmd:"note",duration:n,gap:0,instrument:e.currentInstrument[t],pitch:r,start:e.starts[t],volume:a};i&&(s.cents=i),e.tracks[t].push(s),e.starts[t]+=n,e.totalDuration=Math.max(e.totalDuration,e.starts[t])}}},2426:function(e,t,r){var n=r(6074),a={violin:{name:"StringTab",defaultTuning:["G,","D","A","e"],isTabBig:!1,tabSymbolOffset:0},fiddle:{name:"StringTab",defaultTuning:["G,","D","A","e"],isTabBig:!1,tabSymbolOffset:0},mandolin:{name:"StringTab",defaultTuning:["G,","D","A","e"],isTabBig:!1,tabSymbolOffset:0},guitar:{name:"StringTab",defaultTuning:["E,","A,","D","G","B","e"],isTabBig:!0,tabSymbolOffset:0},fiveString:{name:"StringTab",defaultTuning:["C,","G,","D","A","e"],isTabBig:!1,tabSymbolOffset:-.95}},i={inited:!1,plugins:{},register:function(e){var t=e.name,r=e.tablature;this.plugins[t]=r},setError:function(e,t){e.warnings?e.warning.push(t):e.warnings=[t]},preparePlugins:function(e,t,r){this.inited||(this.register(new n),this.inited=!0);var i=null;if(r.tablature){var s=r.tablature;i=[];for(var o=0;o0)for(var a=r.length,i=0;i1&&r&&r.length>0)for(a=r.length,i=0;i=0;n--)if(t.pitch+t.pitchAltered>=e.stringPitches[n]){var a=t.pitch+t.pitchAltered-e.stringPitches[n];return"^"===t.quarter?a-=.5:"v"===t.quarter&&(a+=.5),{num:Math.round(a),str:e.stringPitches.length-1-n,note:t}}return{num:"?",str:e.stringPitches.length-1,note:t}}function l(e,t){var r={num:"?",str:0,note:t};e.push(r),e.error=t.emit()+": unexpected note for instrument"}function h(e){var t=e.tuning,r=e.capo,s=e.params.highestNote;this.linePitch=e.linePitch,this.highestNote="a'",s&&(this.highestNote=s),this.measureAccidentals={},this.capo=0,r&&(this.capo=parseInt(r,10)),this.transpose=e.transpose?e.transpose:0,this.tuning=t,this.stringPitches=[];for(var o=0;o0&&(this.capoTuning=function(e){var t=null,r=e.tuning;if(e.capo>0){t=[];for(var n=0;n0&&(r=e.capoTuning);for(var n=r.length-1,a=0;a1?(o=s(this,e)).error&&(i=o.error):e[0].endTie||((r=new a(e[0].name,this.clefTranspose)).checkKeyAccidentals(this.accidentals,this.measureAccidentals),(n=c(this,r))?o.push(n):(l(o,r),i=o.error))),i)return o;var h=null;if(t){h=[];for(var u=0;u0&&(r+=" capo:"+e.capo),t=t.replace("%T",r)),t}return""},h.prototype.suppress=function(e){return!!e.params.suppress},e.exports=h},8918:function(e){function t(e,t){this.numLines=e,this.lineSpace=t,this.verticalSize=this.numLines*this.lineSpace,this.bar={pitch:3,pitch2:t*e,height:5}}t.prototype.bypass=function(e){var t=e.staffGroup.voices;return!!(t.length>0&&t[0].isPercussion)},t.prototype.setRelative=function(e,t,r){switch(e.type){case"bar":t.pitch=this.bar.pitch,t.pitch2=this.bar.pitch2,t.height=this.height;break;case"symbol":var n=this.bar.pitch2/2;if("dots.dot"==e.name)return r?(t.pitch=n,!1):(t.pitch=n+this.lineSpace,!0)}return r},e.exports=t},6776:function(e,t,r){var n=r(2842),a=n.noteToMidi,i=n.midiToNote;function s(e,t){var r=a(e);t&&(r+=t);var n,s=i(r),o=!1,c=!1,l=null,h=null,u=!1,d=0;e.startsWith("_")?(o=!0,d=-1,"/"==e[1]?(o=!1,h="v",d=0):"_"==e[1]&&(u=!0,d-=1)):e.startsWith("^")?(c=!0,d=1,"/"==e[1]?(c=!1,h="^",d=0):"^"==e[1]&&(u=!0,d+=1)):e.startsWith("=")&&(l=!0,d=0),((n=o||c||null!=h)||l)&&(s=null!=h||u?e.slice(2):e.slice(1));var f=(s.match(/,/g)||[]).length,p=(s.match(/'/g)||[]).length;this.pitch=r,this.pitchAltered=0,this.name=s,this.acc=d,this.isSharp=c,this.isKeySharp=!1,this.isDouble=u,this.isAltered=n,this.isFlat=o,this.isKeyFlat=!1,this.natural=l,this.quarter=h,this.isLower=this.name==this.name.toLowerCase(),this.name=this.name[0].toUpperCase(),this.hasComma=f,this.isQuoted=p}s.prototype.sameNoteAs=function(e){return e.pitch===this.pitch},s.prototype.isLowerThan=function(e){return e.pitch>this.pitch},s.prototype.checkKeyAccidentals=function(e,t){if(!this.isAltered&&!this.natural)if(t[this.name.toUpperCase()])switch(t[this.name.toUpperCase()]){case"__":return this.acc=-2,void(this.pitchAltered=-2);case"_":return this.acc=-1,void(this.pitchAltered=-1);case"=":return this.acc=0,void(this.pitchAltered=0);case"^":return this.acc=1,void(this.pitchAltered=1);case"^^":return this.acc=2,void(this.pitchAltered=2)}else if(e)for(var r=this.name,n=0;n=0){if(r===t)return e.extra[n].x+e.extra[n].w/2;r++}return-1}function f(e){if(e.abcelem){var t=e.abcelem;if(t.rest)return t.gracenotes}return null}function p(e,t,r){var n=e.semantics.notesToNumber(t,r);if(n.error)return e.setError(n.error),n;if(n.graces&&n.notes){var a=n.notes.length-1;n.notes[a].graces=n.graces}return n}function m(e,t,r,n,a){for(var i=0;i=0&&(e.semantics.clefTranspose=-12),k.abcelem.type.indexOf("+8")>=0&&(e.semantics.clefTranspose=12)),k.type){case"staff-extra key-signature":this.accidentals=k.abcelem.accidentals,e.semantics.accidentals=this.accidentals;break;case"bar":e.semantics.measureAccidentals={};var T=!1;x===g.children.length-1&&(T=!0);var S=o(k,e);if(S.abcelem.barNumber){delete S.abcelem.barNumber;for(var _=0;_0&&(y.abselem=M,r.push(y),v.children.push(M))}}},e.exports=h},4785:function(e,t,r){var n=r(3197),a=r(4240),i=r(4331);function s(e,t,r){var n=e.semantics,a=t.controller.getTextSize,i=n.tabInfos(e),s=!0;if(n.suppress(e)&&(s=!1),s){var o=a.calc(i,"tablabelfont","text instrumentname");return r.tabNameInfos={textSize:{height:o.height,width:o.width},name:i},o.height}return 0}function o(e,t){return!(!t[e].isTabStaff||e!==t.length-1&&t[e+1].isTabStaff)}function c(e,t){for(var r=t;r>=0;r--)if(!e[r].isTabStaff)return r;return-1}function l(e,t){return"clef"===e[t].children[0].abcelem.el_type?null:0==t?"none":e[t-1].children[0]}e.exports=function(e,t,r,h){var u=new a,d={clef:{type:"TAB"}},f=e.linePitch*e.nbLines,p=r.staff;if(p){var m=p[0];if(m&&m.clef&&0==m.clef.stafflines)return void e.setError("No tablatures when stafflines=0");p.splice(p.length,0,d)}var g=r.staffGroup,v=g.voices,b=function(e){for(var t=0,r=0;rt&&(t=n.specialY.lyricHeightBelow)}return t}(v[0]),y=h,x=g.staffs[y],k=f+3-x.bottom-b;x.isTabStaff&&(k=x.top);var w={bottom:-1,isTabStaff:!0,specialY:{tempoHeightAbove:0,partHeightAbove:0,volumeHeightAbove:0,dynamicHeightAbove:0,endingHeightAbove:0,chordHeightAbove:0,lyricHeightAbove:0,lyricHeightBelow:0,chordHeightBelow:0,volumeHeightBelow:0,dynamicHeightBelow:0},lines:e.nbLines,linePitch:e.linePitch,dy:.15,top:k},C=function(e,t){for(var r=0,n=0,a=0;;){if(!t[r])return-1;if(t[r].isTabStaff||(a=t[r].voices.length),t[r].isTabStaff){if(n++,o(r,t)&&n=e){if(r+1==t.length)return r+1;if(!t[r+1].isTabStaff)return r+1}if(++r>t.length)return-1}}(h,g.staffs);if(-1!==C){w.parentIndex=C-1,g.staffs.splice(C,0,w),g.height+=f+3;var T=function(e,t){for(var r=t;r>=0;r--)if(!e[r].isTabStaff)return e[r];return null}(g.staffs,C),S=1;(function(e,t){return 1===function(e){for(var t=0,r=0;r1})(g.staffs,T)&&(S=T.voices.length),d.voices=[];for(var _=0;_0&&(E.duplicate=!0);var M=s(e,t,E)/i.STEP;M=Math.max(M,1),g.staffs[h].top+=1,g.height+=M,E.staff=w;var A=v.length;v.splice(v.length,0,E);var N=l(v,_+h);d.voices[_]=[],u.build(e,v,d.voices[_],_,h,N,A)}!function(e){for(var t=0;t0&&(i[0].invisible=!0);break;case"meter":i[0]=l(a,this.tuneNumber),this.startlimitelem=i[0],r.duplicate&&i.length>0&&(i[0].invisible=!0);break;case"clef":if(i[0]=s(a,this.tuneNumber),!i[0])return null;r.duplicate&&i.length>0&&(i[0].invisible=!0);break;case"key":var h=o(a,this.tuneNumber);h&&(i[0]=h,this.startlimitelem=i[0]),r.duplicate&&i.length>0&&(i[0].invisible=!0);break;case"stem":this.stemdir="auto"===a.direction?void 0:a.direction;break;case"part":var u=new n(a,0,0,"part",this.tuneNumber),d=this.getTextSize.calc(a.title,"partsfont","part");u.addFixedX(new f(a.title,0,0,void 0,{type:"part",height:d.height/p.STEP})),i[0]=u;break;case"tempo":var m=new n(a,0,0,"tempo",this.tuneNumber);a.suppress||m.addFixedX(new g(a,this.tuneNumber,c)),i[0]=m;break;case"style":"normal"===a.head?delete this.style:this.style=a.head;break;case"hint":T=!0,this.saveState();break;case"midi":break;case"scale":this.voiceScale=a.size;break;case"color":this.voiceColor=a.color,r.color=this.voiceColor;break;default:var v=new n(a,0,0,"unsupported",this.tuneNumber);v.addFixed(new f("element type "+a.el_type,0,0,void 0,{type:"debug"})),i[0]=v}return i},_.prototype.createBeam=function(e,t,r){var n=[],i=new a(this.stemHeight*this.voiceScale,this.stemdir,this.flatBeams,r[0]);T&&i.setHint();for(var s=0;se.pitches[r+1].pitch){t=!1;var n=e.pitches[r];e.pitches[r]=e.pitches[r+1],e.pitches[r+1]=n}}while(!t)},N=function(e,t,r,n,a,i,s,o,c){for(var l=r;l>11;l--)l%2!=0||n||e.addFixed(new f(null,o,(a+4)*c,l,{type:"ledger"}));for(l=t;l<1;l++)l%2!=0||n||e.addFixed(new f(null,o,(a+4)*c,l,{type:"ledger"}));for(l=0;l1&&(p=new a(i,"grace",s),T&&p.setHint(),p.mainNote=r);var m=[];for(u=e.gracenotes.length-1;u>=0;u--)o+=10,m[u]=o,e.gracenotes[u].accidental&&(o+=7);for(u=0;u=6?"down":"up";for(n&&(_=n),(a=t.style?t.style:a)&&"normal"!==a||(a="note"),(m=i?S[a].nostem:S[a][-s])||console.log("noteSymbol:",a,s,i),g="down"===_?t.pitches.length-2:1;"down"===_?g>=0:g11||M.verticalPos<1)&&x.push(M.verticalPos-M.verticalPos%2),"down"===_?b=d.getSymbolWidth(m)+2:v=d.getSymbolWidth(m)+2)}var N=t.pitches.length;for(g=0;g1?g+1:null,I=c(e,L,t.pitches[g],{dir:_,extrax:-b,flag:P,dot:r,dotshiftx:v,scale:this.voiceScale,accidentalSlot:w,shouldExtendStem:!n,printAccidentals:!l.isPercussion,chordPos:D});T=Math.max(d.getSymbolWidth(L),T),e.extraw-=I.extraLeft,(h=I.notehead)&&(this.addSlursAndTies(e,t.pitches[g],h,l,H?_:null,!1),t.gracenotes&&t.gracenotes.length>0&&(h.bottom=h.bottom-1),e.addHead(h)),b+=I.accidentalshiftx,y=Math.max(y,I.dotshiftx)}if(H){var z=Math.round(70*this.voiceScale)/10,F="down"===_?t.minpitch-z:t.minpitch+1/3;F>6&&!n&&(F=6);var j="down"===_?t.maxpitch-1/3:t.maxpitch+z;j<6&&!n&&(j=6);var V="down"===_||0===e.heads.length?0:e.heads[0].w,G="down"===_?1:-1;h&&"noteheads.slash.quarter"===h.c&&("down"===_?j-=1:F+=1),h&&"noteheads.triangle.quarter"===h.c&&("down"===_?j-=.7:F-=1.2),e.addRight(new f(null,V,0,F,{type:"stem",pitch2:j,linewidth:G,bottom:F-1})),u=Math.min(F,j)}return{noteHead:h,roomTaken:b,roomTakenRight:y,min:u,additionalLedgers:x,dir:_,symbolWidth:T}},_.prototype.addLyric=function(e,t,r){var n="";t.lyric.forEach((function(e){var t=" "===e.divider?"":e.divider;n+=e.syllable+t+"\n"}));var a=this.getTextSize.calc(n,"vocalfont","lyric"),i=t.positioning?t.positioning.vocalPosition:"below";e.addCentered(new f(n,0,a.width,void 0,{type:"lyric",position:i,height:a.height/p.STEP,dim:this.getTextSize.attr("vocalfont","lyric"),voiceNumber:r}))},_.prototype.createNote=function(e,t,r,a){var i,s=null,o=0,l=0,h=0,u=[],p=C(e),m=!1;0===p&&(m=!0,p=.25,t=!0);for(var g=Math.floor(Math.log(p)/Math.log(2)),v=0,y=Math.pow(2,g),k=y/2;y1,this.stemdir,r,g,this.voiceScale);s=M.noteHead,o=M.roomTaken,l=M.roomTakenRight}else{var A=this.addNoteToAbcElement(E,e,v,this.stemdir,this.style,m,g,t,a);void 0!==A.min&&(this.minY=Math.min(A.min,this.minY)),s=A.noteHead,o=A.roomTaken,l=A.roomTakenRight,u=A.additionalLedgers,i=A.dir,h=A.symbolWidth}if(void 0!==e.lyric&&this.addLyric(E,e,a.voicenumber),void 0!==e.gracenotes&&(o+=this.addGraceNotes(e,a,E,s,this.stemHeight*this.voiceScale,this.isBagpipes,o)),e.decoration){var B=t&&"up"!==i?Math.min(-3,E.bottom-6):E.bottom;this.decoration.createDecoration(a,e.decoration,E.top,s?s.w:0,E,o,i,B,e.positioning,this.hasVocals,this.accentAbove)}if(e.barNumber&&E.addFixed(new f(e.barNumber,-10,0,0,{type:"barNumber"})),N(E,e.minpitch,e.maxpitch,e.rest,h,u,i,-2,1),void 0!==e.chord){var P=x(this.getTextSize,E,e,o,l,h,this.jazzchords,this.germanAlphabet);o=P.roomTaken,l=P.roomTakenRight}return e.startTriplet&&(this.triplet=new b(e.startTriplet,s,{flatBeams:this.flatBeams})),e.endTriplet&&this.triplet&&this.triplet.setCloseAnchor(s),!this.triplet||e.startTriplet||e.endTriplet||e.rest&&"spacer"===e.rest.type||this.triplet.middleNote(s),E},_.prototype.addSlursAndTies=function(e,t,r,n,a,i){if(t.endTie&&this.ties.length>0){for(var s=!1,o=0;o10&&"treble"===t.abcelem.type?13.5:11;t.addFixed(new f(e,n,r.width,a+r.height/p.STEP,{type:"barNumber",dim:this.getTextSize.attr("measurefont","bar-number")}))},_.prototype.createBarLine=function(e,t,r){var a=new n(t,0,10,"bar",this.tuneNumber),i=null,s=0;t.barNumber&&this.addMeasureNumber(t.barNumber,a);var o="bar_right_repeat"===t.type||"bar_dbl_repeat"===t.type,c="bar_left_repeat"!==t.type&&"bar_thick_thin"!==t.type&&"bar_invisible"!==t.type,l="bar_right_repeat"===t.type||"bar_dbl_repeat"===t.type||"bar_left_repeat"===t.type||"bar_thin_thick"===t.type||"bar_thick_thin"===t.type,h="bar_left_repeat"===t.type||"bar_thick_thin"===t.type||"bar_thin_thin"===t.type||"bar_dbl_repeat"===t.type,d="bar_left_repeat"===t.type||"bar_dbl_repeat"===t.type;if(o||d){for(var p in this.slurs)this.slurs.hasOwnProperty(p)&&this.slurs[p].setEndX(a);this.startlimitelem=a}if(o&&(a.addRight(new f("dots.dot",s,1,7)),a.addRight(new f("dots.dot",s,1,5)),s+=6),c&&(i=new f(null,s,1,2,{type:"bar",pitch2:10,linewidth:.6}),a.addRight(i)),"bar_invisible"===t.type&&(i=new f(null,s,1,2,{type:"none",pitch2:10,linewidth:.6}),a.addRight(i)),t.decoration&&this.decoration.createDecoration(e,t.decoration,12,l?3:1,a,0,"down",2,t.positioning,this.hasVocals,this.accentAbove),l&&(i=new f(null,s+=4,4,2,{type:"bar",pitch2:10,linewidth:4}),a.addRight(i),s+=5),this.partstartelem&&t.endEnding&&(this.partstartelem.anchor2=i,this.partstartelem=null),h&&(i=new f(null,s+=3,1,2,{type:"bar",pitch2:10,linewidth:.6}),a.addRight(i)),d&&(s+=3,a.addRight(new f("dots.dot",s,1,7)),a.addRight(new f("dots.dot",s,1,5))),t.startEnding&&r&&0===e.voicenumber){var m=this.getTextSize.calc(t.startEnding,"repeatfont","").width;a.minspacing+=m+10,this.partstartelem=new u(t.startEnding,i,null),e.addOther(this.partstartelem)}return a.extraw-=5,void 0!==t.chord&&x(this.getTextSize,a,t,0,0,0,!1,this.germanAlphabet),a},e.exports=_},2652:function(e,t,r){var n=r(6658),a=r(4331),i=r(5810);function s(e,t,r,s,o,c,l,h,u,d,f,p,m,g,v){for(var b=e.split("\n"),y=b.length-1;y>=0;y--){var x,k=b[y],w=0;s||(k=i(k,g,v));var C=h.calc(k,o,c),T=C.width,S=C.height/a.STEP;switch(t){case"left":w=-(f+=T+7),x=d.averagepitch,u.addExtra(new n(k,w,T+4,x,{type:"text",height:S,dim:l,position:"left"}));break;case"right":w=p+=4,x=d.averagepitch,u.addRight(new n(k,w,T+4,x,{type:"text",height:S,dim:l,position:"right"}));break;case"below":u.addRight(new n(k,0,0,void 0,{type:"text",position:"below",height:S,dim:l,realWidth:T}));break;case"above":u.addRight(new n(k,0,0,void 0,{type:"text",position:"above",height:S,dim:l,realWidth:T}));break;default:if(r){var _=r.y+3*a.STEP;u.addRight(new n(k,w+r.x,0,d.minpitch+_/a.STEP,{position:"relative",type:"text",height:S,dim:l}))}else{var E="above";d.positioning&&d.positioning.chordPosition&&(E=d.positioning.chordPosition),"hidden"!==E&&u.addCentered(new n(k,m/2,T,void 0,{type:"chord",position:E,height:S,dim:l,realWidth:T}))}}}return{roomTaken:f,roomTakenRight:p}}e.exports=function(e,t,r,n,a,i,o,c){for(var l=0;l0?o.top+3:o.bottom-1,f=s>0?o.top+3:o.bottom-3,p=f-2;"bass-8"===e.type&&(d=3,u=0),o.addRight(new i("8",5+u,a.getSymbolWidth("8")*h,d,{scalex:h,scaley:h,top:f,bottom:p}))}}return o}},3923:function(e,t,r){var n=r(1409),a=r(6020),i=r(6658);e.exports=function(e,t){if(e.el_type="keySignature",!e.accidentals||0===e.accidentals.length)return null;var r=new n(e,0,10,"staff-extra key-signature",t);r.isKeySig=!0;var s=0;return e.accidentals.forEach((function(e){var t,n=0;switch(e.acc){case"sharp":t="accidentals.sharp",n=-3;break;case"natural":t="accidentals.nat";break;case"flat":t="accidentals.flat",n=-1.2;break;case"quartersharp":t="accidentals.halfsharp",n=-2.5;break;case"quarterflat":t="accidentals.halfflat",n=-1.2;break;default:t="accidentals.flat"}r.addRight(new i(t,s,a.getSymbolWidth(t),e.verticalPos,{thickness:a.symbolHeightInPitches(t),top:e.verticalPos+a.symbolHeightInPitches(t)+n,bottom:e.verticalPos+n})),s+=a.getSymbolWidth(t)+2}),this),r}},2143:function(e,t,r){var n=r(6020),a=r(6658);e.exports=function(e,t,r,i){i||(i={});var s,o=void 0!==i.dir?i.dir:null,c=void 0!==i.headx?i.headx:0,l=void 0!==i.extrax?i.extrax:0,h=void 0!==i.flag?i.flag:null,u=void 0!==i.dot?i.dot:0,d=void 0!==i.dotshiftx?i.dotshiftx:0,f=void 0!==i.scale?i.scale:1,p=void 0!==i.accidentalSlot?i.accidentalSlot:[],m=void 0!==i.shouldExtendStem&&i.shouldExtendStem,g=void 0===i.printAccidentals||i.printAccidentals,v=i.chordPos,b=r.verticalPos,y=0,x=0,k=0;if(void 0===t)e.addFixed(new a("pitch is undefined",0,0,0,{type:"debug"}));else if(""===t)s=new a(null,0,0,b,{chordPos:v});else{var w=c;if(r.printer_shift){var C="same"===r.printer_shift?1:0;w="down"===o?-n.getSymbolWidth(t)*f+C:n.getSymbolWidth(t)*f-C}var T={scalex:f,scaley:f,thickness:n.symbolHeightInPitches(t)*f,name:r.name,chordPos:v};if((s=new a(t,w,n.getSymbolWidth(t)*f,b,T)).stemDir=o,h){var S=b+("down"===o?-7:7)*f;m&&("down"===o&&S>6&&(S=6),"up"===o&&S<6&&(S=6));var _="down"===o?c:c+s.w-.6;e.addRight(new a(h,_,n.getSymbolWidth(h)*f,S,{scalex:f,scaley:f,chordPos:v}))}for(x=s.w+d-2+5*u;u>0;u--){var E=1-Math.abs(b)%2;e.addRight(new a("dots.dot",s.w+d-2+5*u,n.getSymbolWidth("dots.dot"),b+E,{chordPos:v}))}}if(s&&(s.highestVert=r.highestVert),g&&r.accidental){var M;switch(r.accidental){case"quartersharp":M="accidentals.halfsharp";break;case"dblsharp":M="accidentals.dblsharp";break;case"sharp":M="accidentals.sharp";break;case"quarterflat":M="accidentals.halfflat";break;case"flat":M="accidentals.flat";break;case"dblflat":M="accidentals.dblflat";break;case"natural":M="accidentals.nat"}for(var A=!1,N=l,B=0;B=6){p[B][0]=b,N=p[B][1],A=!0;break}!1===A&&(N-=n.getSymbolWidth(M)*f+2,p.push([b,N]),y=n.getSymbolWidth(M)*f+2);var P=n.symbolHeightInPitches(M);e.addExtra(new a(M,N,n.getSymbolWidth(M),b,{scalex:f,scaley:f,top:b+P/2,bottom:b-P/2,chordPos:v})),k=n.getSymbolWidth(M)/2}return{notehead:s,accidentalshiftx:y,dotshiftx:x,extraLeft:k}}},2525:function(e,t,r){var n=r(1409),a=r(6020),i=r(6658);e.exports=function(e,t){e.el_type="timeSignature";var r=new n(e,0,10,"staff-extra time-signature",t);if("specified"===e.type)for(var s=0,o=0;o",this.dynamicPositioning)),this.startDiminuendoX=void 0),this.startCrescendoX&&(e.addOther(new a(this.startCrescendoX,d(e.children),"<",this.dynamicPositioning)),this.startCrescendoX=void 0)},l.prototype.dynamicDecoration=function(e,t,r,n){for(var s,o,c,l=0;l",n)),o&&e.addOther(new a(o.start,o.stop,"<",n)),c&&e.addOther(new i(c.start,c.stop))},l.prototype.createDecoration=function(e,t,r,a,i,l,u,d,f,p,m){f||(f={ornamentPosition:"above",volumePosition:p?"above":"below",dynamicPosition:p?"above":"below"}),function(e,t,r,a){for(var i=0;i9&&d++;var m=n/2;"center"!==s.getSymbolAlign(p)&&(m-=s.getSymbolWidth(p)/2),a.addFixedX(new o(p,m,s.getSymbolWidth(p),d))}if("slide"===t[f]&&a.heads[0]){var g=a.heads[0].pitch,v=new o("",-i-15,0,(g-=2)-1),b=new o("",-i-5,0,g+1);a.addFixedX(v),a.addFixedX(b),e.addOther(new c({anchor1:v,anchor2:b,fixedY:!0}))}}return void 0===d&&(d=r),{above:d,below:a.bottom}}(e,t,r,a,i,l,u,d,m);g.above=Math.max(g.above,this.minTop),g.below=Math.min(g.below,d),function(e,t,r,n,a,i,c,l){function h(e,t){"above"===e?n.above+=t:n.below-=t}function u(e){var t;return"above"===e?(t=n.above)c&&(t=c),t}function d(e,n,a){var i=u(n);r.addFixedX(new o(e,t/2,0,i+2,{type:"decoration",klass:"ornament",thickness:3,anchor:a})),h(n,5)}function f(e,n){var a=t/2;"center"!==s.getSymbolAlign(e)&&(a-=s.getSymbolWidth(e)/2);var i=s.symbolHeightInPitches(e)+1,c=u(n);c="above"===n?c+i/2:c-i/2,r.addFixedX(new o(e,a,s.getSymbolWidth(e),c,{klass:"ornament",thickness:s.symbolHeightInPitches(e),position:n})),h(n,i)}for(var p={"+":"scripts.stopped",open:"scripts.open",snap:"scripts.snap",wedge:"scripts.wedge",thumb:"scripts.thumb",shortphrase:"scripts.shortphrase",mediumphrase:"scripts.mediumphrase",longphrase:"scripts.longphrase",trill:"scripts.trill",trillh:"scripts.trill",roll:"scripts.roll",irishroll:"scripts.roll",marcato:"scripts.umarcato",dmarcato:"scripts.dmarcato",umarcato:"scripts.umarcato",turn:"scripts.turn",uppermordent:"scripts.prall",pralltriller:"scripts.prall",mordent:"scripts.mordent",lowermordent:"scripts.mordent",downbow:"scripts.downbow",upbow:"scripts.upbow",fermata:"scripts.ufermata",invertedfermata:"scripts.dfermata",breath:",",coda:"scripts.coda",segno:"scripts.segno"},m=0;mthis.w&&(this.w=e.dx+e.w),this.right[this.right.length]=e,this._addChild(e)},i.prototype.addFixed=function(e){this._addChild(e)},i.prototype.addFixedX=function(e){this._addChild(e)},i.prototype.addCentered=function(e){var t=e.w/2;-tthis.w&&(this.w=e.dx+t),this.right[this.right.length]=e,this._addChild(e)},i.prototype.setLimit=function(e,t){t[e]&&(this.specialY[e]?this.specialY[e]=Math.max(this.specialY[e],t[e]):this.specialY[e]=t[e])},i.prototype._addChild=function(e){var t=!0;"clef"==this.abcelem.el_type&&"barNumber"==e.type&&(t=!1),e.parent=this,this.children[this.children.length]=e,t&&this.pushTop(e.top),this.pushBottom(e.bottom),this.setLimit("tempoHeightAbove",e),this.setLimit("partHeightAbove",e),this.setLimit("volumeHeightAbove",e),this.setLimit("dynamicHeightAbove",e),this.setLimit("endingHeightAbove",e),this.setLimit("chordHeightAbove",e),this.setLimit("lyricHeightAbove",e),this.setLimit("lyricHeightBelow",e),this.setLimit("chordHeightBelow",e),this.setLimit("volumeHeightBelow",e),this.setLimit("dynamicHeightBelow",e)},i.prototype.pushTop=function(e){void 0!==e&&(void 0===this.top?this.top=e:this.top=Math.max(e,this.top))},i.prototype.pushBottom=function(e){void 0!==e&&(void 0===this.bottom?this.bottom=e:this.bottom=Math.min(e,this.bottom))},i.prototype.setX=function(e){this.x=e;for(var t=0;tthis.max)&&(this.max=e.abcelem.maxpitch))},t.prototype.addBeam=function(e){this.beams.push(e)},t.prototype.setStemDirection=function(){this.average=r(this.total,this.count),this.forceup?this.stemsUp=!0:this.forcedown?this.stemsUp=!1:this.stemsUp=this.average<6,delete this.count,this.total=0},t.prototype.calcDir=function(){this.average=r(this.total,this.elems.length),this.forceup?this.stemsUp=!0:this.forcedown?this.stemsUp=!1:this.stemsUp=this.average<6;for(var e=this.stemsUp?"up":"down",t=0;t0&&this.unalignedWords(e.unalignedWords,n,a,i,s),this.extraText(e,n,a,i,s),e.footer&&r&&this.footer(e.footer,t,n,s)}function s(e,t,r,n,i,s,o){r&&(t&&(r="string"==typeof r?t+r:[{text:t}].concat(r)),a(e,r,"historyfont",i=s?"abcjs-extra-text "+i:"","description",n,{absElemType:"extraText",anchor:"start"},o))}function o(e,t,r,i,s,o,c,l,h,u,d,f){if(r){l=d?"abcjs-extra-text "+l:"";var p=f.calc("A",s,l);if("string"==typeof r)t&&(r=t+"\n"+r),n(e,{marginLeft:i,text:r,font:s,absElemType:"extraText",name:h,"dominant-baseline":"middle",klass:l},f);else{e.push({startGroup:c,klass:l,name:h}),e.push({move:u.info}),t&&(n(e,{marginLeft:i,text:t,font:s,absElemType:"extraText",name:h,"dominant-baseline":"middle"},f),e.push({move:3*p.height/4}));for(var m=0;m0&&this.startVoice.staff.voices[0]===e)},e.exports=t},6891:function(e){e.exports=function(e,t,r,n){this.type="CrescendoElem",this.anchor1=e,this.anchor2=t,this.dir=r,"above"===n?this.dynamicHeightAbove=6:this.dynamicHeightBelow=6,this.pitch=void 0}},3185:function(e){e.exports=function(e,t,r){this.type="DynamicDecoration",this.anchor=e,this.dec=t,"below"===r?this.volumeHeightBelow=6:this.volumeHeightAbove=6,this.pitch=void 0}},8256:function(e){e.exports=function(e,t,r){this.type="EndingElem",this.text=e,this.anchor1=t,this.anchor2=r,this.endingHeightAbove=5,this.pitch=void 0}},3736:function(e){e.exports=function(e,t,r,n,a,i){var s,o=e.text;this.rows=[],t&&this.rows.push({move:t});var c=r.calc("textfont","defined-text");if(""===o)this.rows.push({move:2*c.attr["font-size"]});else if("string"==typeof o){this.rows.push({move:c.attr["font-size"]/2}),this.rows.push({left:n,text:o,font:"textfont",klass:"defined-text",anchor:"start",startChar:e.startChar,endChar:e.endChar,absElemType:"freeText",name:"free-text"});var l=o.replace(/^[ \t]*\n/gm,"X\n");s=i.calc(l,"textfont","defined-text"),this.rows.push({move:s.height})}else if(o){for(var h=0,u=n,d="textfont",f=0;fthis.top&&(this.top=this.pitch2),this.bottom=n,void 0!==this.pitch2&&this.pitch20?this.top+=a.stemHeight:this.bottom+=a.stemHeight),a.dim&&(this.dim=a.dim),a.position&&(this.position=a.position),void 0!==a.voiceNumber&&(this.voiceNumber=a.voiceNumber),this.height=a.height?a.height:4,a.top&&(this.top=a.top),a.bottom&&(this.bottom=a.bottom),a.name?this.name=a.name:this.c?this.name=this.c:this.name=this.type,a.realWidth?this.realWidth=a.realWidth:this.realWidth=this.w,this.centerVertically=!1,this.type){case"debug":this.chordHeightAbove=this.height;break;case"lyric":a.position&&"below"===a.position?this.lyricHeightBelow=this.height:this.lyricHeightAbove=this.height;break;case"chord":a.position&&"below"===a.position?this.chordHeightBelow=this.height:this.chordHeightAbove=this.height;break;case"text":void 0===this.pitch?a.position&&"below"===a.position?this.chordHeightBelow=this.height:this.chordHeightAbove=this.height:this.centerVertically=!0;break;case"part":this.partHeightAbove=this.height}};t.prototype.getChordDim=function(){if("debug"===this.type)return null;if(!this.chordHeightAbove&&!this.chordHeightBelow)return null;var e="chord"===this.type?this.realWidth/2:0,t=this.x-e-0;return{left:t,right:t+this.realWidth+0}},t.prototype.invertLane=function(e){void 0===this.lane&&(this.lane=0),this.lane=e-this.lane-1},t.prototype.putChordInLane=function(e){this.lane=e,this.chordHeightAbove?this.chordHeightAbove=1.25*this.height*this.lane:this.chordHeightBelow=1.25*this.height*this.lane},t.prototype.getLane=function(){return void 0===this.lane?0:this.lane},t.prototype.setX=function(e){this.x=e+this.dx},e.exports=t},6994:function(e,t,r){var n=r(1716);e.exports=function(e,t,r,a,i,s,o,c){var l=c.calc("i",r,a);if(""===t)e.push({move:l.height});else{if("string"==typeof t)return void n(e,{marginLeft:s,text:t,font:r,klass:a,marginTop:o.marginTop,anchor:o.anchor,absElemType:o.absElemType,info:o.info,name:i},c);o.marginTop&&e.push({move:o.marginTop});var h=0,u={left:s,anchor:o.anchor,phrases:[]};a&&(u.klass=a),e.push(u);for(var d=0;d0)this.above=!1;else{var e;e=this.anchor1?this.anchor1.pitch:this.anchor2?this.anchor2.pitch:14,this.anchor1&&"down"===this.anchor1.stemDir&&this.anchor2&&"down"===this.anchor2.stemDir?this.above=!0:this.anchor1&&"up"===this.anchor1.stemDir&&this.anchor2&&"up"===this.anchor2.stemDir?this.above=!1:this.anchor1&&this.anchor2?this.above=e>=6:this.anchor1?this.above="down"===this.anchor1.stemDir:this.anchor2?this.above="down"===this.anchor2.stemDir:this.above=e>=6}},t.prototype.calcSlurDirection=function(){if(this.isGrace)this.above=!1;else if(0===this.voiceNumber)this.above=!0;else if(this.voiceNumber>0)this.above=!1;else{var e=!1;this.anchor1&&"down"===this.anchor1.stemDir&&(e=!0),this.anchor2&&"down"===this.anchor2.stemDir&&(e=!0);for(var t=0;te&&(e=this.internalNotes[t].highestVert);e>this.startY&&e>this.endY&&(this.startY=this.endY=e-1)}},t.prototype.getYBounds=function(){var e,t;return this.isTie?(this.calcTieDirection(),this.calcX(10,1e3),this.calcTieY()):(this.calcSlurDirection(),this.calcX(10,1e3),this.calcSlurY()),this.above?e=(t=Math.min(this.startY,this.endY))+3:t=(e=Math.min(this.startY,this.endY))-3,[e,t]},e.exports=t},1134:function(e,t,r){var n=r(1716),a=r(6994);e.exports=function(e,t,r,i,s,o,c,l,h,u){if(this.rows=[],e.header&&o){var d=u.calc("X","headerfont","abcjs-header abcjs-meta-top").height;n(this.rows,{marginLeft:c,text:e.header.left,font:"headerfont",klass:"header meta-top",marginTop:-d,info:t.header,name:"header"},u),n(this.rows,{marginLeft:c+s/2,text:e.header.center,font:"headerfont",klass:"header meta-top",marginTop:-d,anchor:"middle",info:t.header,name:"header"},u),n(this.rows,{marginLeft:c+s,text:e.header.right,font:"headerfont",klass:"header meta-top",marginTop:-d,anchor:"end",info:t.header,name:"header"},u)}o&&this.rows.push({move:l.top});var f=r.titleleft?"start":"middle",p=r.titleleft?c:c+s/2;if(e.title){var m=h?"abcjs-title":"";a(this.rows,e.title,"titlefont",m,"title",p,{marginTop:l.title,anchor:f,absElemType:"title",info:t.title},u)}if(i.length)for(var g=0;g0){var v=!(!e.composer&&!e.origin);m=h?"abcjs-rhythm":"",n(this.rows,{marginLeft:c,text:e.rhythm,font:"infofont",klass:m,absElemType:"rhythm",noMove:v,info:t.rhythm,name:"rhythm"},u)}e.composer&&e.composer,e.origin&&e.origin;var b=e.composer?e.composer:"";e.origin&&("string"==typeof b&&"string"==typeof e.origin?b+=" ("+e.origin+")":"string"==typeof b&&"string"!=typeof e.origin?((b=[{text:b}]).push({text:" ("}),(b=b.concat(e.origin)).push({text:")"})):(b.push({text:" 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t=function(e,t,r){this.type="TripletElem",this.anchor1=t,this.number=e,this.durationClass=("d"+Math.round(1e3*t.parent.durationClass)/1e3).replace(/\./,"-"),this.middleElems=[],this.flatBeams=r.flatBeams};t.prototype.isClosed=function(){return!!this.anchor2},t.prototype.middleNote=function(e){this.middleElems.push(e)},t.prototype.setCloseAnchor=function(e){this.anchor2=e,this.anchor1.parent.beam&&"up"!==this.anchor1.stemDir||(this.endingHeightAbove=4)},e.exports=t},3197:function(e){var t=function(e,t){this.children=[],this.beams=[],this.otherchildren=[],this.w=0,this.duplicate=!1,this.voicenumber=e,this.voicetotal=t,this.bottom=7,this.top=7,this.specialY={tempoHeightAbove:0,partHeightAbove:0,volumeHeightAbove:0,dynamicHeightAbove:0,endingHeightAbove:0,chordHeightAbove:0,lyricHeightAbove:0,lyricHeightBelow:0,chordHeightBelow:0,volumeHeightBelow:0,dynamicHeightBelow:0}};t.prototype.addChild=function(e){if("bar"===e.type){for(var t=!0,r=0;t&&r0&&"TempoElement"===t.children[0].type;t.elemset=[],o.beginGroup(e.paper,e.controller);for(var u=0;u=0&&f.setAttribute("class","abcjs-notehead"),f&&d.chordPos&&0!==d.name.indexOf("flags.")&&(p=(p=f.getAttribute("class"))?p+" abcjs-chord-pos-"+d.chordPos:"abcjs-chord-pos-"+d.chordPos,f.setAttribute("class",p))}}var p=t.type;if(("note"===t.type||"rest"===t.type)&&(t.counters=e.controller.classes.getCurrent(),p=(p+=" d"+Math.round(1e3*t.durationClass)/1e3).replace(/\./g,"-"),t.abcelem.pitches))for(var m=0;m0?g.classList[0]+" ":"";g.setAttribute("class",v+t.overrideClasses)}if(h)t.startChar=t.abcelem.startChar,t.endChar=t.abcelem.endChar,c.add(t,g,!1,l);else{t.elemset.push(g);var b=!1;"note"!==t.type&&"tabNumber"!==t.type||(b=!0),c.add(t,g,b,l)}}else t.elemset.length>0&&c.add(t,t.elemset[0],"note"===t.type,l);if(t.klass&&s(t.elemset,"mark","","#00ff00"),t.hint&&s(t.elemset,"abcjs-hint","",null),t.abcelem.abselem=t,t.heads&&t.heads.length>0){t.notePositions=[];for(var y=0;ys&&l>=14;)l-=2,o.setAttribute("font-size",l),c=o.getBBox()}var c=20,l=-3;function h(e){return"No Chord"===e?"N.C.":e}function u(e,t,r,n,a,i,s,o,c){var l={x:r,y:n,stroke:"none","font-size":a,"font-style":i.style,"font-family":i.face,"font-weight":i.weight,"text-decoration":i.decoration};return s&&(l["data-name"]=s),o&&(l.class=o),l["text-anchor"]=c?"middle":"start",e.paper.text(t,l,null,{"alignment-baseline":"middle"})}e.exports=function(e,t,r,a,d){var f=d.gchordfont,p=(d.partsfont,d.annotationfont),m=d.repeatfont,g=d.textfont,v=d.subtitlefont,b=50;e.paper.openGroup({klass:"abcjs-chord-grid"}),t.forEach((function(t){switch(t.type){case"text":u(e,t.text,r,e.y,16,g,null,null,!1),e.moveY(16);break;case"subtitle":u(e,t.subtitle,r,e.y+10,20,v,null,"abcjs-subtitle",!1),e.moveY(20);break;case"part":if(t.lines.length>0){u(e,t.name,r,e.y+10,20,v,t.name,"abcjs-part",!1),e.moveY(20);var d=t.lines[0].length,y=a/d;t.lines.forEach((function(t,a){var d=!1,g=!1;t.forEach((function(e){e.ending&&(d=!0),e.annotations&&e.annotations.length>0&&(g=!0)}));var v=g?14:d?10:0;t.forEach((function(t,a){if(!t.noBorder){e.paper.rect({x:r+a*y,y:e.y,width:y,height:v+b}),e.paper.rect({x:r+a*y+1,y:e.y+1,width:y-2,height:v+b-2});var d=0,g=0,x=e.y,k=r+y*a;t.hasStartRepeat&&(i(e,k,x,x+b+v,!0,v),d=12),t.hasEndRepeat&&(i(e,k+y,x,x+b+v,!1,v),g=12);var w=0;t.ending&&(w=u(e,t.ending,r+a*y+4,x+10,12,m,null,null,!1).getBBox().width+4),!function(e,t,r,a,i,s,u,d,f,p,m){var g=r+a*s;u[1]||u[2]||u[3]?u[1]||u[3]?function(e,t,r,n,a,i,s,u){var 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i=t-10,s=t+10,o=r+10,c=r-10,l=t-10,h=2-e.yToPitch(a),u=t+6.5,d=-e.yToPitch(a)-2.3;e.paper.lineToBack({x1:i,x2:s,y1:o,y2:c,"stroke-width":"3px","stroke-linecap":"round"}),n(e,l,h,"dots.dot",{scalex:1,scaley:1,klass:"",name:"dot"}),n(e,u,d,"dots.dot",{scalex:1,scaley:1,klass:"",name:"dot"})}(e,t+a/2,r+i/2,h+i/2):o(e,t+a/2,r+i/2+l,34,s,c,a)}(e,g,t+m,a-f,p,u[0],d,m)}(e,x,r+d,y,0,a,t.chord,f,d+g,b,v),t.annotations&&t.annotations.length>0&&function(e,t,r,a,i){r+=3;for(var o=0;or.formatting.maxStaves)break;t.shouldAddClasses&&(b.klass="abcjs-staff-wrapper abcjs-l"+t.lineNumber),e.paper.openGroup(b),C.vskip&&e.moveY(C.vskip),x.length>=1&&h(e,e.spacing.staffSeparation,x[x.length-1],C.staffGroup);var T=l(e,C.staffGroup,v,w);T.line=m+w,x.push(T),e.paper.closeGroup()}else C.nonMusic&&(t.shouldAddClasses&&(b.klass="abcjs-non-music"),e.paper.openGroup(b),i(e,C.nonMusic,v),e.paper.closeGroup())}return t.reset(),y||r.bottomText&&r.bottomText.rows&&r.bottomText.rows.length>0&&(t.shouldAddClasses&&(b.klass="abcjs-meta-bottom"),e.paper.openGroup(b),e.moveY(24),i(e,r.bottomText,v),e.paper.closeGroup()),a(e,s,d,u),{staffgroups:x,selectables:v.getElements()}}},9879:function(e,t,r){var n=r(4777);e.exports=function(e,t,r){void 0===t.pitch&&window.console.error("Dynamic Element y-coordinate not set.");var a=n(e,t.anchor.x,t.pitch,t.dec,{scalex:1,scaley:1,klass:e.controller.classes.generate("decoration dynamics"),fill:e.foregroundColor,stroke:"none",name:"dynamics"});return r.wrapSvgEl({el_type:"dynamicDecoration",startChar:-1,endChar:-1,decoration:t.dec},a),[a]}},5947:function(e,t,r){var n=r(6764),a=r(5759),i=r(6454),s=r(7199);e.exports=function(e,t,r,o,c){void 0===t.pitch&&window.console.error("Ending Element y-coordinate not set.");var l=s(e.calcY(t.pitch)),h="";t.anchor1&&(r=s(t.anchor1.x+t.anchor1.w),h+=n("M %f %f L %f %f ",r,l,r,s(l+20))),t.anchor2&&(o=s(t.anchor2.x),h+=n("M %f %f L %f 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diff --git a/render_assets/manifest.json b/render_assets/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..ff9402148875916335176c1c3d1bdb3b07a66353
--- /dev/null
+++ b/render_assets/manifest.json
@@ -0,0 +1,106 @@
+{
+ "abcjs_version": "6.6.3",
+ "abcjs_revision": "5dc285c5a4a918d33f2ab4b3c381499847e88426",
+ "piano_revision": "cbd6b6f6d1af89ebfb69402860741288f08ff8b7",
+ "piano_source": "https://github.com/paulrosen/midi-js-soundfonts/tree/cbd6b6f6d1af89ebfb69402860741288f08ff8b7/FluidR3_GM/acoustic_grand_piano-mp3",
+ "files": {
+ "DejaVuSans.ttf": "7da195a74c55bef988d0d48f9508bd5d849425c1770dba5d7bfc6ce9ed848954",
+ "LICENSE.abcjs": "ab1072f859916529e284a8f43643146de9935041bb347a35559a96c87ce5566f",
+ "LICENSE.font": "7a083b136e64d064794c3419751e5c7dd10d2f64c108fe5ba161eae5e5958a93",
+ "abcjs-basic-min.js": "abdab74cf95c39fb9ff4ae0c96735b9c35222851f0844ce471ddd4354739bc75",
+ "renderer.js": "0756398dfe69fe1c54c8779252885fbf573d02eecbe3f2389a0b81e0f43fcd09",
+ "soundfonts/ATTRIBUTION.md": "87237050093c1d4f47f5c459f1e18b57ea6710f92d1a57b4462f8f5aa31e11be",
+ "soundfonts/acoustic_grand_piano-mp3/A0.mp3": "5c47e8142b04505c888b8edd7246a8881b4b30c4340682f0264191599df232fc",
+ "soundfonts/acoustic_grand_piano-mp3/A1.mp3": "abab379d4d0557abb93856f816b7bb395872e656533c3fe7f02048fc993834b7",
+ "soundfonts/acoustic_grand_piano-mp3/A2.mp3": "e21d9ab9b30c73c0aea921c2cd0dd59fece4cc021619927c9ff3dee71f0a9679",
+ "soundfonts/acoustic_grand_piano-mp3/A3.mp3": "02dee2fa184b9b94a5f72886c2370bd076103ebb76fc179982fa503e549dcc10",
+ "soundfonts/acoustic_grand_piano-mp3/A4.mp3": "4f1671ac831bc41c845e67b18e6c9ea200fc9b753bdffe124703b7141aa928c3",
+ "soundfonts/acoustic_grand_piano-mp3/A5.mp3": "2cccfe0aa8077bfd20bcbba470012faa0328ae97d5bd2297147c01f2b255e574",
+ "soundfonts/acoustic_grand_piano-mp3/A6.mp3": "87dab2b5bfdd8bafa575fc24b99591e87e5a0c991a8bbdc8aeb8a1e517b576d2",
+ "soundfonts/acoustic_grand_piano-mp3/A7.mp3": "ace76663dac4610a93259655f069835e6eb397b76aedf85c1f48a5036cf25687",
+ "soundfonts/acoustic_grand_piano-mp3/Ab1.mp3": "a9889722caea82aa67a8b7f600f1def8e51e095f1f423949c3a8e9dbf5c14abd",
+ "soundfonts/acoustic_grand_piano-mp3/Ab2.mp3": "b45bb57e125cdbbc3bb521ae643e67a90c0ff646d37e5b5284e5c70bfeff6c75",
+ "soundfonts/acoustic_grand_piano-mp3/Ab3.mp3": "843d633061631861c943266b4836573fe8ba8b8a10df9bd94adc380376cdb8ce",
+ "soundfonts/acoustic_grand_piano-mp3/Ab4.mp3": "e8612f8602d1c146f9b7f69a441ee518876ccdfa469457366c8064c25d9d3116",
+ "soundfonts/acoustic_grand_piano-mp3/Ab5.mp3": "31c86a311eb68761b8008359b34addfeec249d1c7d6795a52f8f2e172e3e8a05",
+ "soundfonts/acoustic_grand_piano-mp3/Ab6.mp3": "7775c09d08d344af9528edbf7abb6f59ac600e4d15efd6f139845bb107a822ed",
+ "soundfonts/acoustic_grand_piano-mp3/Ab7.mp3": "66932305995ff04e9e0244c5a408ec87c9131ab3915eac15c72c7659132ab0f2",
+ "soundfonts/acoustic_grand_piano-mp3/B0.mp3": "4422d1d2f0498aec427165415f5d665d78699e8623475215ce9b27c18b3d331f",
+ "soundfonts/acoustic_grand_piano-mp3/B1.mp3": "048003df58298d2659bff084885ad69d9531fdc03837c7ee39c8bcf68334b5b9",
+ "soundfonts/acoustic_grand_piano-mp3/B2.mp3": "be2df872b00b68adead4ca24ef68bd4a93bf0c4864d455d742171e5df91e86b7",
+ "soundfonts/acoustic_grand_piano-mp3/B3.mp3": "82c0463af9c9fe51d44aa59b71d2dccefab11c1ea98e2748ee93244f8af9169e",
+ "soundfonts/acoustic_grand_piano-mp3/B4.mp3": "5f09187820410b0f78575f232c3509f367478b7755b6eb5aa46ce6cf4c16a0e8",
+ "soundfonts/acoustic_grand_piano-mp3/B5.mp3": "4e0932827d3e9390080c4a9acd420e9b83871a5f73723feaf61d2d7f6b628b01",
+ "soundfonts/acoustic_grand_piano-mp3/B6.mp3": "d31aa62152acd598d55fb02cc024e59e0176a7dc13d27813882f299cae7baf7a",
+ "soundfonts/acoustic_grand_piano-mp3/B7.mp3": "6e1aad1cc92f17ebf6fe6161766cce279250e67a30569649481c77ab80db1677",
+ "soundfonts/acoustic_grand_piano-mp3/Bb0.mp3": "e4734f8d0285f0e5a39db7f61023510b46fb1570743b20d287479dcaa5536adb",
+ "soundfonts/acoustic_grand_piano-mp3/Bb1.mp3": "6d4face1b6559a08af3f9a49fcbc472b43e974e072156b31850ab9a230713aa3",
+ "soundfonts/acoustic_grand_piano-mp3/Bb2.mp3": "78cc11431a2a2d52294f0c714c59107a886f637806ae2cba63d50ff53585b93e",
+ "soundfonts/acoustic_grand_piano-mp3/Bb3.mp3": "6ac0f67f18e15db35553d4fcd83ceec4473ebe639e31659ce93cf8466cb06644",
+ "soundfonts/acoustic_grand_piano-mp3/Bb4.mp3": "d8f729899595116cb62ca9b7b801b4dfb9322bdf50d1bbfa847010e43a39f8f5",
+ "soundfonts/acoustic_grand_piano-mp3/Bb5.mp3": "51224d4c26f1c89b08e43865ef55d3638367f7f40fbc92e4ab88610b54d4301d",
+ "soundfonts/acoustic_grand_piano-mp3/Bb6.mp3": "394488d6cbd2c58b40f202e5acc238abdb73f261bcebd7105fb81d091113c4aa",
+ "soundfonts/acoustic_grand_piano-mp3/Bb7.mp3": "fe72a195f6036722e587e1597e54d66ec70e0ce11768e74e39bb2319bf256f80",
+ "soundfonts/acoustic_grand_piano-mp3/C1.mp3": "eb3b985e3b692cfe0c48550a26843fc3da44c7630c0b7bcfd820e87c5122cccc",
+ "soundfonts/acoustic_grand_piano-mp3/C2.mp3": "e02c5a80c03871e1889a3bb371d853f92294c1e8538ac06f70df0fd045540207",
+ "soundfonts/acoustic_grand_piano-mp3/C3.mp3": "7d0409ea3c40af25c6d3d606f12890f88f896d93c381b6eb8c58497f308b30d3",
+ "soundfonts/acoustic_grand_piano-mp3/C4.mp3": "b6d32e0d9d0c2e4b88165a2ec27b8787a970f131a03d96d065f28f158640af96",
+ "soundfonts/acoustic_grand_piano-mp3/C5.mp3": "7a4be6dae323ac5564ad1a617b554fd595e5e0a63f19c3581e3ee94c33ae2e4b",
+ "soundfonts/acoustic_grand_piano-mp3/C6.mp3": "6a0030c071ccd6c9a722455851d65b18cb86cbfe515772a6ded4c747eda339a0",
+ "soundfonts/acoustic_grand_piano-mp3/C7.mp3": "5e4cadc06eb25e2302dcc5bf1af76fe85ed258759d02c46e9169376ade83845e",
+ "soundfonts/acoustic_grand_piano-mp3/C8.mp3": "4ec066cab9362f6706b90fedc3249fa3c221769ee95ff52d7e46aaaf0a01fd16",
+ "soundfonts/acoustic_grand_piano-mp3/D1.mp3": "2389562397c7bdf2a856965b8b371eb6311be3cad2875c71d8ff4a607a242cea",
+ "soundfonts/acoustic_grand_piano-mp3/D2.mp3": "6233cc6f3670a287e33c7b8ece3b03a787ee1e169c8355432ce0b5e194bee612",
+ "soundfonts/acoustic_grand_piano-mp3/D3.mp3": "b8a5ed9cf147e10f484f3ad39930130d487b12045a35cef73f48dab401e6583b",
+ "soundfonts/acoustic_grand_piano-mp3/D4.mp3": "90539782bdbbbe714de579bfbbe6f478e07e112c6f78d03e8ee82462fbf2a569",
+ "soundfonts/acoustic_grand_piano-mp3/D5.mp3": "b25b5e541807af700f4e2272ac4c55a2f9b5cc8f176fcd9961d4456803af2b87",
+ "soundfonts/acoustic_grand_piano-mp3/D6.mp3": "46317b9dca22a75986ecfeba93ef34c8f7bc6d4e2e0223dc64b13c9a1984110b",
+ "soundfonts/acoustic_grand_piano-mp3/D7.mp3": "d7db5e63d7caa2fc62e00f55366f9a5236b3a13f7eb0d141a9823e10c7cc4209",
+ "soundfonts/acoustic_grand_piano-mp3/Db1.mp3": "84f2ba7505c515c39797eafe36295b15ee9da8adbafcfbfbfc7685532b4bdce4",
+ "soundfonts/acoustic_grand_piano-mp3/Db2.mp3": "c5d76b97326a189786aba25685c8789f59d4dc41d5fbd4d6a6aa97986b2b7d1d",
+ "soundfonts/acoustic_grand_piano-mp3/Db3.mp3": "c5bd77b92ad8411c47e509643a7d6fc9c74f3aaba2290e2f4aed6a2ba1446e88",
+ "soundfonts/acoustic_grand_piano-mp3/Db4.mp3": "f49892c4e935296db1cb785000818e6a04bf0756c4443bffa6245144fdaf3e47",
+ "soundfonts/acoustic_grand_piano-mp3/Db5.mp3": "924a70321fe728ff7a69c941029e060f529e6ada507f20357ee74039e270e588",
+ "soundfonts/acoustic_grand_piano-mp3/Db6.mp3": "5e4b55cc27db80e899ea817c546f4c0cf15b43267f426f8de53baac770f90be7",
+ "soundfonts/acoustic_grand_piano-mp3/Db7.mp3": "56c93ba30fa46db98590fd4c218fec88e87b02eaa0b177bcc0ad621fd9a506da",
+ "soundfonts/acoustic_grand_piano-mp3/Db8.mp3": "1be0e2193b729fc32a4fbb82f9f46bb4c0b2cbb67027c0f07c8eeff6460b64cf",
+ "soundfonts/acoustic_grand_piano-mp3/E1.mp3": "740bf03f7ac2a9bbd41ae10f7daf876bc8bde6fe6d355f2f2781ae70d95c762a",
+ "soundfonts/acoustic_grand_piano-mp3/E2.mp3": "316b392d51d9c27334976511643112b088a9812a8e37e598957e8acc6725aad0",
+ "soundfonts/acoustic_grand_piano-mp3/E3.mp3": "5e556a4850b93b1adba6655372c9e58913169864c52a8e6f232f4b1e901ca2dc",
+ "soundfonts/acoustic_grand_piano-mp3/E4.mp3": "48bcecf53832988af83f74aa65efd7daa34f1e3ebf10de4679363b89d54f3852",
+ "soundfonts/acoustic_grand_piano-mp3/E5.mp3": "c48cee1a11528da53e1f780a1ed36558530f053b5ed8c7033709b2002b452513",
+ "soundfonts/acoustic_grand_piano-mp3/E6.mp3": "e4de8378854d6b39b40d4cf7b022f60bda097993b492639c8a0a005f02a010e0",
+ "soundfonts/acoustic_grand_piano-mp3/E7.mp3": "e757f51d2fb54dca2c0adb4ee6a2b86459a52e2f7dfa227529558a6a0f28fd07",
+ "soundfonts/acoustic_grand_piano-mp3/Eb1.mp3": "694e89cd30008f47411336ea1b76675503bbc5383c3849df676b2cf6b51eee67",
+ "soundfonts/acoustic_grand_piano-mp3/Eb2.mp3": "708ff787e5ae2bfa45fe386e5fadc90a9339817dd245ed6e6f62532e42fad8d2",
+ "soundfonts/acoustic_grand_piano-mp3/Eb3.mp3": "bec9944789ef9e7ec3dd7f9fcdf63ed1e5e82e29447c81be3578df9b1269b4b6",
+ "soundfonts/acoustic_grand_piano-mp3/Eb4.mp3": "96586e2865651cfa0469e762f3bd40821f6e45eecf4761a86a37bc59cfebfb2c",
+ "soundfonts/acoustic_grand_piano-mp3/Eb5.mp3": "aad99b852c20c2aee66143dd103513523566716cb2f4c6ef6ac478ef84f282b0",
+ "soundfonts/acoustic_grand_piano-mp3/Eb6.mp3": "c0f4c45d7930ed90edebfd93321807cdb7346e364ba1933867c4b49ba18d5368",
+ "soundfonts/acoustic_grand_piano-mp3/Eb7.mp3": "c23b9b43ca8ece152e59ef04832b2290e96db54f9539af3162df4054c23271c7",
+ "soundfonts/acoustic_grand_piano-mp3/F1.mp3": "6b83be26ca990ee91e4d404afd5756e5d63b7a6f9ac46da068c80b2692945dba",
+ "soundfonts/acoustic_grand_piano-mp3/F2.mp3": "7bb9c26ec86e1d32194ab5ced3805e1026e638a4a5481d556a7e3f2860141c46",
+ "soundfonts/acoustic_grand_piano-mp3/F3.mp3": "ff912c3211f80dc0c4f541ebd39c1db11f21cfda684d54999f9bce87aaf0cf20",
+ "soundfonts/acoustic_grand_piano-mp3/F4.mp3": "a7426425ed95ea8652a888d850c34c4b766c7c7a11c168ed6899c38a6836be0c",
+ "soundfonts/acoustic_grand_piano-mp3/F5.mp3": "d7f046daec924ce8607ec92360e0d0e42e29e4b3a108839179e04aba4adadc51",
+ "soundfonts/acoustic_grand_piano-mp3/F6.mp3": "6f7794d298d1036ebbd514ad1b3605ffbd280556925fba05e29b83052cbf3dfd",
+ "soundfonts/acoustic_grand_piano-mp3/F7.mp3": "f49b2b54f0b913f636b5822eae373a85dbb30ec5e9a6ebc18e498fdfe0547011",
+ "soundfonts/acoustic_grand_piano-mp3/G1.mp3": "d187e74ca3a23d08248ea4073abc0893a758c8b15c4b6af16c3ba1d2394830db",
+ "soundfonts/acoustic_grand_piano-mp3/G2.mp3": "034f90b9f81e5aca0012f1ff73d731308653578a7eb4bee30efca37af5afce77",
+ "soundfonts/acoustic_grand_piano-mp3/G3.mp3": "3b75e4dfd657723b3c7a30bca0409dce8013b4083d54e703c8ec513b535cee99",
+ "soundfonts/acoustic_grand_piano-mp3/G4.mp3": "37d21e13d5cecc8c0f1645c83bfe82f6032407a3b7de3dde14021c196526664e",
+ "soundfonts/acoustic_grand_piano-mp3/G5.mp3": "2eb949282bc676f3dc96bf5008459b5fff02696e63b70ff799ff08c36bb97058",
+ "soundfonts/acoustic_grand_piano-mp3/G6.mp3": "c24ccf8d6f0c6c9818fe244d150a42c42585629db413e6b245088fdb589e9f3d",
+ "soundfonts/acoustic_grand_piano-mp3/G7.mp3": "7cc4630a06cbc11438fac85c00b640cc7677be8332105204632b687d7127ebc4",
+ "soundfonts/acoustic_grand_piano-mp3/Gb1.mp3": "6ff97bc16a3020037f46ebe4196ce2602eed8af243b567768d4cb5d47a8ba0bc",
+ "soundfonts/acoustic_grand_piano-mp3/Gb2.mp3": "95ab26a90d088fdc938673005ba2b2a4b166ee188ffbad0c7f75fb746334b043",
+ "soundfonts/acoustic_grand_piano-mp3/Gb3.mp3": "91605f55bf0265c1e526b966a3901f9c2813473ac890f4b7330ee08874c5d30f",
+ "soundfonts/acoustic_grand_piano-mp3/Gb4.mp3": "f0db7ee32b9175907ca60cf53e6c7a129ea8e7c8f6562dc7ebe6e5c81dcbdf99",
+ "soundfonts/acoustic_grand_piano-mp3/Gb5.mp3": "bd1d81203f5338ab62372f88c0b4eb5b4a3133ef58518a8770f3dfdf34f74124",
+ "soundfonts/acoustic_grand_piano-mp3/Gb6.mp3": "c5f87e3bf666919bd1e230f6945ee4af752761faa54dc1814f854e8e9d8a7920",
+ "soundfonts/acoustic_grand_piano-mp3/Gb7.mp3": "8615b92d93fa16b4051bdc8800a6430642bdcff17e26d020ec5fd83bf89db759"
+ },
+ "font_version": "DejaVu Sans 2.37",
+ "font_license_source": "https://raw.githubusercontent.com/dejavu-fonts/dejavu-fonts/version_2_37/LICENSE",
+ "abcjs_git_blob": "a56bbfc0d004c9b14ea17ad4fd6b52a61b74d255"
+}
diff --git a/render_assets/renderer.js b/render_assets/renderer.js
new file mode 100644
index 0000000000000000000000000000000000000000..2e7afb9e86af1717af03a93eb9542356b0aef489
--- /dev/null
+++ b/render_assets/renderer.js
@@ -0,0 +1,165 @@
+"use strict";
+
+// These display adaptations leave the saved ABC unchanged.
+function expandRests(abc) {
+ let header = true, voice = null, meter = [4, 4], unit = [1, 8];
+ const meters = new Map();
+ return abc.split(/\r?\n/).map(line => {
+ const field = line.match(/^([A-Za-z]):\s*(.*)$/);
+ if (field) {
+ const [, key, value] = field;
+ if (key === "V") {
+ voice = value.split(/\s/)[0];
+ if (!meters.has(voice)) meters.set(voice, meter);
+ }
+ if (key === "M") {
+ const match = value.match(/^(\d+)\/(\d+)$/);
+ if (match) {
+ const next = match.slice(1).map(Number);
+ if (header || !voice) meter = next;
+ else meters.set(voice, next);
+ }
+ }
+ if (key === "L") unit = value.split("/").map(Number);
+ if (key === "K") header = false;
+ return line;
+ }
+ if (header || line.startsWith("%")) return line;
+ return line.replace(/"[^"\n]*"|\[[^\]\n]*\]|Z(\d*)\|/g, (token, count) => {
+ if (count === undefined) return token;
+ const [n, d] = meters.get(voice) || meter;
+ return (`z${n * unit[1] / (d * unit[0])}|`).repeat(Number(count || 1));
+ });
+ }).join("\n");
+}
+
+function fixSystemKeys(tune) {
+ for (const line of tune.lines) for (const staff of line.staff || []) {
+ for (const voice of staff.voices) {
+ for (let i = 0; i < voice.length && voice[i].el_type !== "note";) {
+ const event = voice[i];
+ if (event.el_type === "key" || event.el_type === "keySignature") {
+ staff.key = {...event, accidentals: event.accidentals.map(a => ({...a}))};
+ delete staff.key.impliedNaturals;
+ voice.splice(i, 1);
+ } else i++;
+ }
+ }
+ }
+}
+
+window.renderScore = async abc => {
+ document.body.innerHTML = '';
+ const fontStyle = document.createElement("style");
+ fontStyle.textContent = '#source text, #source span, #pages text {font-family:SheetSageSans !important}';
+ document.head.append(fontStyle);
+ const source = document.getElementById("source");
+ source.style.cssText = "position:absolute;left:-2000px;width:714px";
+ const tunes = ABCJS.renderAbc(source, expandRests(abc), {
+ staffwidth: 674, paddingtop: 12, paddingbottom: 12, paddingleft: 20, paddingright: 20,
+ oneSvgPerLine: true, print: true, add_classes: true,
+ wrap: {minSpacing: 1.8, maxSpacing: 2.7, preferredMeasuresPerLine: 4},
+ afterParsing: fixSystemKeys,
+ });
+ if (!tunes.length || !tunes.some(t => t.lines.some(l => l.staff?.length)))
+ throw new Error("ABC contains no music to render.");
+ const warnings = tunes.flatMap(t => t.warnings || []);
+ if (warnings.length) throw new Error("Invalid ABC: " + warnings.join("; "));
+ await document.fonts.ready;
+ const ns = "http://www.w3.org/2000/svg";
+ const pages = [];
+ let page, content, used = 0, systems = 0;
+ function addPage() {
+ page = document.createElementNS(ns, "svg");
+ for (const [k, v] of Object.entries({xmlns:ns, width:794, height:1123, viewBox:"0 0 794 1123"}))
+ page.setAttribute(k,v);
+ page.setAttribute("class", "score-page");
+ const fontStyle = document.createElementNS(ns, "style");
+ fontStyle.textContent = '@font-face{font-family:SheetSageSans;src:url(data:font/ttf;base64,' + window.renderFontData + ')}text{font-family:SheetSageSans !important}';
+ page.append(fontStyle);
+ const license = document.createElementNS(ns, "metadata");
+ license.textContent = window.renderFontLicense;
+ page.append(license);
+ const background = document.createElementNS(ns, "rect");
+ for (const [k,v] of Object.entries({width:794,height:1123,fill:"white"})) background.setAttribute(k,v);
+ page.append(background);
+ content = document.createElementNS(ns, "g");
+ content.setAttribute("transform", "translate(40 40)");
+ page.append(content);
+ document.getElementById("pages").append(page);
+ pages.push(page);
+ used = 0;
+ }
+ for (const svg of source.querySelectorAll("svg")) {
+ const box = svg.getBoundingClientRect();
+ if (!(box.width > 0 && box.height > 0)) continue;
+ const scale = Math.min(1, 714 / box.width);
+ const height = box.height * scale;
+ if (height > 1043) throw new Error("A staff system is taller than one page.");
+ if (!page || used + height > 1043) addPage();
+ const group = document.createElementNS(ns, "g");
+ group.setAttribute("transform", `translate(0 ${used}) scale(${scale})`);
+ const clone = svg.cloneNode(true);
+ clone.setAttribute("width",box.width);
+ clone.setAttribute("height",box.height);
+ clone.style.overflow = "visible";
+ group.append(clone);
+ content.append(group);
+ used += height;
+ systems++;
+ }
+ source.remove();
+ if (!pages.length) throw new Error("No score pages were produced.");
+ return {pages:pages.map(p => new XMLSerializer().serializeToString(p)), systems, warnings};
+};
+
+window.renderAudio = async ({tracks, duration}) => {
+ const context = new AudioContext({sampleRate:44100});
+ await context.resume();
+ const sequence = new ABCJS.synth.SynthSequence();
+ for (const track of tracks) {
+ const id = sequence.addTrack();
+ sequence.setInstrument(id, 0);
+ for (const note of track.notes) sequence.tracks[id].push({
+ cmd:"note", instrument:0, pitch:note.pitch, volume:note.velocity,
+ start:note.start, duration:note.end-note.start, gap:0,
+ });
+ }
+ sequence.totalDuration = duration;
+ const synth = new ABCJS.synth.CreateSynth();
+ const loaded = await synth.init({audioContext:context, sequence, millisecondsPerMeasure:1000,
+ options:{soundFontUrl:"https://render.invalid/soundfonts/", fadeLength:35,
+ programOffsets:{acoustic_grand_piano:0}, soundFontVolumeMultiplier:1}});
+ if (loaded.error?.length) throw new Error("Could not load piano samples: " + loaded.error.join(", "));
+ await synth.prime();
+ const buffer = synth.getAudioBuffer();
+ if (!buffer) throw new Error("The renderer returned no audio.");
+ // Simultaneous voices retain their balance; a peak guard avoids PCM clipping.
+ let peak = 0;
+ for (let c=0; c 0 ? 0.98 / peak : 0.7);
+ window.renderedAudio = {buffer, gain};
+ await context.close();
+ return {frames:buffer.length, sample_rate:buffer.sampleRate, channels:buffer.numberOfChannels, gain};
+};
+
+window.audioBlock = ({start, count}) => {
+ const {buffer, gain} = window.renderedAudio;
+ const frames = Math.min(count, buffer.length-start);
+ const bytes = new Uint8Array(frames*buffer.numberOfChannels*2);
+ const view = new DataView(bytes.buffer);
+ for (let c=0; c {
+ window.renderFontData = font;
+ window.renderFontLicense = license;
+ const face = new FontFace('SheetSageSans', 'url(data:font/ttf;base64,' + font + ')');
+ document.fonts.add(await face.load());
+ }""", {"font": base64.b64encode((assets / "DejaVuSans.ttf").read_bytes()).decode("ascii"),
+ "license": (assets / "LICENSE.font").read_text(encoding="utf-8")})
+ info = page.evaluate("renderScore", abc_text)
+ for kind in formats:
+ output["score"][kind] = []
+ if "pdf" in formats:
+ if destination is None:
+ output["score"]["pdf"] = [page.pdf(format="A4", print_background=True, prefer_css_page_size=True)]
+ else:
+ target = destination / "score.pdf"
+ temporary = target.with_suffix(".pdf.partial")
+ page.pdf(path=str(temporary), format="A4", print_background=True, prefer_css_page_size=True)
+ temporary.replace(target)
+ output["score"]["pdf"] = [str(target)]
+ for index, svg in enumerate(info["pages"], 1):
+ if "svg" in formats:
+ if destination is None:
+ output["score"]["svg"].append(svg)
+ else:
+ target = destination / f"score_{index:03}.svg"
+ target.write_text(svg, encoding="utf-8")
+ output["score"]["svg"].append(str(target))
+ if "png" in formats:
+ element = page.locator(".score-page").nth(index-1)
+ if destination is None:
+ output["score"]["png"].append(element.screenshot(type="png"))
+ else:
+ target = destination / f"score_{index:03}.png"
+ element.screenshot(path=str(target))
+ output["score"]["png"].append(str(target))
+ output["warnings"].extend(info["warnings"])
+ if blocked:
+ raise RuntimeError(f"Rendering attempted to load unavailable assets: {', '.join(blocked)}")
+ except BrowserError as exc:
+ raise RuntimeError(str(exc).split("Call log:", 1)[0].strip()) from exc
+ finally:
+ browser.close()
+ # A failed render leaves existing pages intact. Only remove obsolete pages
+ # in the requested formats, within this renderer's numbered-file namespace.
+ if formats:
+ for number, path in previous_pages:
+ if number > len(info["pages"]):
+ path.unlink(missing_ok=True)
+ return output
diff --git a/requirements-render.txt b/requirements-render.txt
new file mode 100644
index 0000000000000000000000000000000000000000..62924031791cb03af9f3dc115d216f8a64a07dc1
--- /dev/null
+++ b/requirements-render.txt
@@ -0,0 +1,3 @@
+playwright==1.58.0
+pretty_midi==0.2.10
+setuptools==78.1.1
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..641a1f9495a5be42a9afe699c89deec5e0508e47
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+torch==2.8.0
+torchaudio==2.8.0
+transformers==4.45.2
+huggingface-hub==0.36.0
+safetensors==0.5.3
+numpy==1.24.3
+scipy==1.13.1
+mir_eval==0.8.2
+pretty_midi==0.2.10
+mido==1.3.3
+setuptools==78.1.1
diff --git a/schema_sheetsage2.py b/schema_sheetsage2.py
new file mode 100644
index 0000000000000000000000000000000000000000..a8b21fcd28098af1bee0894f6de4f81ab32ec007
--- /dev/null
+++ b/schema_sheetsage2.py
@@ -0,0 +1,122 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class PromptTaskSpec:
+ name: str
+ sampling_group: str
+ output_field: str
+
+
+@dataclass(frozen=True)
+class TokenBlockSpec:
+ name: str
+ labels: tuple[str, ...]
+ output_field: str | None = None
+
+
+@dataclass(frozen=True)
+class PromptMultitaskSchema:
+ version: str
+ tasks: tuple[PromptTaskSpec, ...]
+ event_field_order: tuple[str, ...]
+ appended_token_blocks: tuple[TokenBlockSpec, ...] = ()
+
+
+V1_TASKS = (
+ PromptTaskSpec("timestamp", "timestamp", "timestamp"),
+ PromptTaskSpec("downbeat_meter", "rhythm", "rhythm"),
+ PromptTaskSpec("structure", "structure", "structure"),
+ PromptTaskSpec("key", "key", "key"),
+ PromptTaskSpec("chord_majmin", "chord", "chord"),
+ PromptTaskSpec("chord_full", "chord", "chord"),
+ PromptTaskSpec("melody_vocal", "melody", "melody"),
+ PromptTaskSpec("melody_full", "melody", "melody"),
+)
+
+
+PROMPT_MULTITASK_SCHEMAS = {
+ "v1": PromptMultitaskSchema(
+ version="v1",
+ tasks=V1_TASKS,
+ event_field_order=(
+ "timestamp",
+ "rhythm",
+ "structure",
+ "key",
+ "chord",
+ "melody",
+ ),
+ ),
+}
+
+
+def _validate_schema(schema):
+ task_names = tuple(task.name for task in schema.tasks)
+ if len(task_names) != len(set(task_names)):
+ raise ValueError(f"Duplicate task name in schema {schema.version!r}")
+ field_names = tuple(schema.event_field_order)
+ if len(field_names) != len(set(field_names)):
+ raise ValueError(f"Duplicate output field in schema {schema.version!r}")
+ missing_fields = {
+ task.output_field for task in schema.tasks if task.output_field not in field_names
+ }
+ if missing_fields:
+ raise ValueError(
+ f"Tasks in schema {schema.version!r} use unknown output fields: "
+ f"{tuple(sorted(missing_fields))}"
+ )
+ block_names = tuple(block.name for block in schema.appended_token_blocks)
+ if len(block_names) != len(set(block_names)):
+ raise ValueError(f"Duplicate token block in schema {schema.version!r}")
+ for block in schema.appended_token_blocks:
+ if not block.labels or len(block.labels) != len(set(block.labels)):
+ raise ValueError(
+ f"Token block {block.name!r} must contain unique labels"
+ )
+
+
+def register_prompt_multitask_schema(schema):
+ """Register a frozen schema version without permitting redefinition."""
+ if not isinstance(schema, PromptMultitaskSchema):
+ raise TypeError("schema must be a PromptMultitaskSchema")
+ _validate_schema(schema)
+ existing = PROMPT_MULTITASK_SCHEMAS.get(schema.version)
+ if existing is not None and existing != schema:
+ raise ValueError(f"Schema {schema.version!r} is already registered")
+ PROMPT_MULTITASK_SCHEMAS[schema.version] = schema
+ return schema
+
+
+def extend_prompt_multitask_schema(
+ base_version,
+ version,
+ tasks=(),
+ event_fields=(),
+ token_blocks=(),
+):
+ """Append tasks and vocabulary blocks while preserving every base token id."""
+ base = get_prompt_multitask_schema(base_version)
+ schema = PromptMultitaskSchema(
+ version=str(version),
+ tasks=base.tasks + tuple(tasks),
+ event_field_order=base.event_field_order + tuple(event_fields),
+ appended_token_blocks=base.appended_token_blocks + tuple(token_blocks),
+ )
+ return register_prompt_multitask_schema(schema)
+
+
+def get_prompt_multitask_schema(version):
+ version = str(version)
+ try:
+ return PROMPT_MULTITASK_SCHEMAS[version]
+ except KeyError as exc:
+ raise ValueError(
+ f"Unknown prompt multitask schema {version!r}; "
+ f"available={tuple(PROMPT_MULTITASK_SCHEMAS)}"
+ ) from exc
+
+
+_validate_schema(PROMPT_MULTITASK_SCHEMAS["v1"])
diff --git a/setup_render.py b/setup_render.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc0d2cd683a94fd1e434f2ece1277a88f66156bf
--- /dev/null
+++ b/setup_render.py
@@ -0,0 +1,37 @@
+"""Install the optional renderer and its matching headless browser."""
+from pathlib import Path
+import argparse
+import subprocess
+import sys
+
+SCRIPT_DIR = Path(__file__).absolute().parent
+sys.path.insert(0, str(SCRIPT_DIR))
+
+
+def main():
+ parser = argparse.ArgumentParser(description=__doc__)
+ parser.add_argument("--with-deps", action="store_true", help="Also install Chromium OS libraries (may require sudo).")
+ args = parser.parse_args()
+ subprocess.run([sys.executable, "-m", "pip", "install", "-r", str(SCRIPT_DIR / "requirements-render.txt")], check=True)
+ command = [sys.executable, "-m", "playwright", "install", "--only-shell", "chromium"]
+ if args.with_deps:
+ command.append("--with-deps")
+ subprocess.run(command, check=True)
+ check = """from playwright.sync_api import sync_playwright
+with sync_playwright() as p:
+ browser = p.chromium.launch(headless=True, args=['--disable-gpu'])
+ context = browser.new_context(offline=True)
+ page = context.new_page()
+ assert page.evaluate('typeof OfflineAudioContext') == 'function'
+ browser.close()
+"""
+ result = subprocess.run([sys.executable, "-c", check], capture_output=True, text=True)
+ if result.returncode:
+ print("Chromium could not start. On Linux, run python setup_render.py --with-deps to install its system libraries.", file=sys.stderr)
+ return 1
+ print("Rendering is ready. Example: python render.py --input output --audio --score pdf")
+ return 0
+
+
+if __name__ == "__main__":
+ raise SystemExit(main())
diff --git a/tensors_sheetsage2.py b/tensors_sheetsage2.py
new file mode 100644
index 0000000000000000000000000000000000000000..aff5b3dff79c21fd26e7674cf7421d65aad764c4
--- /dev/null
+++ b/tensors_sheetsage2.py
@@ -0,0 +1,99 @@
+"""Aligned audio features and token predictions, in memory or on disk."""
+import json
+from pathlib import Path
+
+import torch
+from safetensors.torch import save_file
+
+from .generation_sheetsage2 import inference_autocast
+
+
+class WindowTensorWriter:
+ def __init__(self, output_dir, index, window, logits, scores):
+ self.directory = Path(output_dir) / "tensors" / f"window-{index:04d}" if output_dir is not None else None
+ if self.directory is not None:
+ self.directory.mkdir(parents=True, exist_ok=True)
+ self.window = window
+ self.logits, self.scores = logits, scores
+ self.pending, self.files = [], []
+ self.data = {"window_index": index, "token_batches": [], "decoder_batches": []} if self.directory is None else None
+
+ def _store(self, name, payload, group):
+ if self.directory is not None:
+ save_file(payload, str(self.directory / name))
+ self.files.append(name)
+ elif group == "audio":
+ self.data["audio"] = payload
+ else:
+ self.data[group].append(payload)
+
+ def audio_features(self, model, audio, dtype, hidden_states):
+ with inference_autocast(audio.device, dtype):
+ features = model.get_audio_features(audio, output_hidden_states=hidden_states)
+ payload = {}
+ for name, value in features.items():
+ if torch.is_tensor(value):
+ payload[name] = value.detach().cpu().contiguous().clone()
+ elif isinstance(value, tuple):
+ for index, layer in enumerate(value):
+ if torch.is_tensor(layer):
+ payload[f"{name}.{index}"] = layer.detach().cpu().contiguous().clone()
+ memory = features.encoder_last_hidden_state
+ frames = memory.shape[1]
+ valid_seconds = self.window["end"] - self.window["start"]
+ payload["frame_times"] = torch.arange(frames, dtype=torch.float64) / 25 + self.window["start"]
+ payload["feature_attention_mask"] = (torch.arange(frames) / 25 < valid_seconds)[None]
+ self._store("audio.safetensors", payload, "audio")
+ return memory
+
+ def capture(self, position, ids, logits, masked):
+ # Transcription processes one window at a time; keep at most 32 rows.
+ row = {"token_position": torch.tensor(position, dtype=torch.long)}
+ if self.logits:
+ row["logits"] = logits[0].detach().cpu().contiguous()
+ if self.scores:
+ row["scores"] = masked[0].detach().cpu().contiguous()
+ self.pending.append(row)
+ if len(self.pending) == 32:
+ self.flush()
+
+ def flush(self):
+ if not self.pending:
+ return
+ first = int(self.pending[0]["token_position"])
+ name = f"tokens-{first:04d}.safetensors"
+ self._store(name, {key: torch.stack([row[key] for row in self.pending]) for key in self.pending[0]},
+ "token_batches")
+ self.pending.clear()
+
+ def decoder_features(self, model, audio, tokens, dtype, memory=None):
+ with inference_autocast(audio.device, dtype):
+ if memory is None:
+ memory = model.encode(audio)
+ cache = None
+ for start in range(0, len(tokens) - 1, 64):
+ ids = tokens[start:min(start + 64, len(tokens) - 1)][None].to(audio.device)
+ output = model.decoder(
+ input_ids=ids,
+ attention_mask=ids.ne(model.tokenizer.pad_token) if cache is None else None,
+ encoder_hidden_states=memory, encoder_attention_mask=None,
+ past_key_values=cache, use_cache=True, return_dict=True,
+ )
+ cache = output.past_key_values
+ name = f"decoder-{start:04d}.safetensors"
+ self._store(name, {"decoder_hidden_state": output.last_hidden_state.detach().cpu().contiguous(),
+ "input_token_ids": ids.cpu(),
+ "token_positions": torch.arange(start, start + ids.shape[1])},
+ "decoder_batches")
+
+ def finish(self):
+ self.flush()
+ metadata = dict(self.window, frame_rate=25)
+ if self.directory is not None:
+ metadata["files"] = self.files
+ metadata["token_position_convention"] = "logits predict the token at token_position; decoder embeddings represent input_token_ids"
+ if self.directory is not None:
+ (self.directory / "index.json").write_text(json.dumps(metadata, indent=2) + "\n")
+ else:
+ self.data["metadata"] = metadata
+ return self.data
diff --git a/tests/test_spelling.py b/tests/test_spelling.py
new file mode 100644
index 0000000000000000000000000000000000000000..f685747e36a3843df1f67cf558169fec194741b1
--- /dev/null
+++ b/tests/test_spelling.py
@@ -0,0 +1,147 @@
+import copy
+import json
+from pathlib import Path
+from tempfile import TemporaryDirectory
+import unittest
+
+import mir_eval.chord
+import numpy as np
+
+from ..chord_spelling_sheetsage2 import (QUALITIES, correct_chord_rows, correct_chord_spelling,
+ normalize_key_name, spell_chord_tones)
+from ..tokenization_sheetsage2 import SheetSage2Tokenizer as Tokenizer, FULL_CHORD_VOCABULARY
+from ..exports_sheetsage2 import export_result
+from ..notation_sheetsage2 import get_key_accidentals, note_to_abc
+
+
+def example():
+ events = []
+ for i in range(16):
+ values = {'rhythm': {'meter': [4, 4], 'eighth_position': i % 4 * 2},
+ 'melody': [{'pitch': [63, 68, 70, 67][i % 4], 'track': 1,
+ 'end_time': (i + 1) * .5, 'duration_bin': 2, 'duration_steps': 4}]}
+ if i == 0:
+ values.update(key='D#:major', chord='D#:maj/3', structure='verse')
+ if i == 4:
+ values['chord'] = 'G#:maj'
+ if i == 8:
+ values.update(key='G#:minor', chord='D#:min')
+ events.append({'time': i * .5, 'global_subbeat': i * 4, 'values': values})
+ return {'events': events}
+
+
+class SpellingTests(unittest.TestCase):
+ def test_cm_chords_and_inversions(self):
+ for raw, expected in [('D#:maj', 'Eb:maj'), ('G#:maj', 'Ab:maj'),
+ ('A#:7/3', 'Bb:7/3'), ('D#:min7/b7', 'Eb:min7/b7'),
+ ('C:min', 'C:min'), ('N', 'N'), ('X', 'X')]:
+ self.assertEqual(correct_chord_spelling(raw, 'C:minor'), expected)
+
+ def test_chord_tones_keep_pitch_classes(self):
+ naturals = [0, 2, 4, 5, 7, 9, 11]
+ for quality, chroma in QUALITIES.items():
+ offsets = [i for i, value in enumerate(chroma) if value > 0]
+ for root_pc in range(12):
+ for letter in range(7):
+ acc = (root_pc - naturals[letter] + 6) % 12 - 6
+ tones = spell_chord_tones(np.array([letter, acc]), quality)
+ self.assertEqual([(naturals[l] + a) % 12 for l, a in tones],
+ [(root_pc + o) % 12 for o in offsets])
+
+ def test_chromatic_chords_use_key_side_spelling(self):
+ for raw, key, expected in [('C:maj', 'E:major', 'C:maj'), ('A#:maj', 'G:major', 'Bb:maj'),
+ ('D#:maj', 'G:major', 'Eb:maj'), ('G#:7', 'C:major', 'Ab:7'),
+ ('A#:min', 'C:major', 'Bb:min'), ('C#:hdim7', 'G:major', 'C#:hdim7'),
+ ('F:hdim7', 'G#:minor', 'E#:hdim7')]:
+ self.assertEqual(correct_chord_spelling(raw, key), expected)
+
+ def test_local_midpoint_including_boundary_and_missing_keys(self):
+ rows = [[0, 2, 'G#:maj'], [2, 6, 'G#:maj'], [6, 8, 'G#:maj']]
+ keys = [[0, 4, 'C:minor'], [4, 8, 'E:major']]
+ original = copy.deepcopy((rows, keys))
+ self.assertEqual([r[2] for r in correct_chord_rows(rows, keys)], ['Ab:maj', 'Ab:maj', 'G#:maj'])
+ self.assertEqual((rows, keys), original)
+ self.assertEqual(correct_chord_rows(rows, []), rows)
+ self.assertEqual(correct_chord_rows([], keys), [])
+
+ def test_key_labels_keep_ids_and_checkpoint_fingerprint(self):
+ tokenizer = Tokenizer(300, 100)
+ self.assertEqual(tokenizer.vocab_fingerprint, '5ba3325af0344c7f')
+ major = ['C', 'Db', 'D', 'Eb', 'E', 'F', 'F#', 'G', 'Ab', 'A', 'Bb', 'B']
+ minor = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'Bb', 'B']
+ for offset, roots, mode in [(0, major, 'major'), (12, minor, 'minor')]:
+ for i, root in enumerate(roots):
+ label = f'{root}:{mode}'
+ token = tokenizer.key_token_start + offset + i
+ self.assertEqual(tokenizer._decode_field('key', [token], ()), label)
+ self.assertEqual(tokenizer.describe(token), f'')
+ self.assertEqual(tokenizer.key_to_token(label), token)
+ self.assertEqual(normalize_key_name(label), label)
+ self.assertEqual(tokenizer.key_to_token('D#:major'), tokenizer.key_to_token('Eb:major'))
+
+ def test_entire_chord_vocabulary_preserves_sounding_pitches(self):
+ for key in ('C:minor', 'E:major', 'A#:minor', 'C#:major', 'F#:major'):
+ for chord in FULL_CHORD_VOCABULARY:
+ spelled = correct_chord_spelling(chord, key)
+ before = mir_eval.chord.encode(chord)
+ after = mir_eval.chord.encode(spelled)
+ self.assertEqual(before[0], after[0])
+ np.testing.assert_array_equal(before[1], after[1])
+ self.assertEqual(before[2], after[2])
+ if chord != 'N':
+ self.assertEqual(chord.split(':', 1)[1], spelled.split(':', 1)[1])
+
+ def test_nolm_key_relative_pitch_examples(self):
+ state = {}
+ self.assertEqual([note_to_abc(n, get_key_accidentals('Cm'), state) for n in (63, 68, 70, 75)],
+ ['E', 'A', 'B', 'e'])
+ self.assertEqual(note_to_abc(67, get_key_accidentals('G#m'), {}), '^^F')
+ self.assertEqual(note_to_abc(59, get_key_accidentals('Db'), {}), '_C')
+ self.assertEqual(note_to_abc(60, get_key_accidentals('C#m'), {}), '^B,')
+ state = {}
+ self.assertEqual([note_to_abc(n, get_key_accidentals('Cm'), state) for n in (64, 76, 63)],
+ ['=E', 'e', '_E'])
+ self.assertEqual(note_to_abc(63, get_key_accidentals('Cm'), {}), 'E')
+
+ def test_export_uses_corrected_labels_without_mutating_events(self):
+ decoded = example()
+ original = copy.deepcopy(decoded)
+ with TemporaryDirectory() as td:
+ root = Path(td)
+ result = export_result(decoded, Tokenizer(300, 100), root, 8)
+ self.assertIsNone(result['abc_error'])
+ self.assertEqual(decoded, original)
+ self.assertEqual(json.loads((root/'events.json').read_text()), original)
+ self.assertIn('Eb:major', (root/'key.lab').read_text())
+ self.assertNotIn('D#:major', (root/'notation/song_keys.txt').read_text())
+ for path in ['chord.lab', 'notation/song_chords.txt']:
+ text = (root/path).read_text()
+ self.assertIn('Eb:maj/3', text)
+ self.assertIn('Ab:maj', text)
+ self.assertIn('D#:min', text)
+ abc = (root/'score.abc').read_text()
+ self.assertIn('K:Eb', abc)
+ self.assertIn('"Eb/G"', abc)
+ self.assertIn('"Ab"', abc)
+ self.assertIn('K:G#m', abc)
+
+ def test_in_memory_paper_and_melody_only_exports(self):
+ for paper in (False, True):
+ for melody_only in (False, True):
+ decoded = example()
+ original = copy.deepcopy(decoded)
+ result = export_result(decoded, Tokenizer(300, 100), duration=8,
+ paper=paper, melody_only=melody_only)
+ self.assertIsNone(result['abc_error'])
+ payload = result['payload']
+ self.assertEqual(decoded, original)
+ self.assertEqual(payload['events'], original['events'])
+ self.assertIn('Eb:major', payload['labs']['key'])
+ self.assertIn('Eb:maj/3', payload['labs']['chord'])
+ self.assertIn('K:Eb', payload['abc'])
+ self.assertIn('K:G#m', payload['abc'])
+ self.assertEqual('"Eb/G"' in payload['abc'], not melody_only)
+
+
+if __name__ == '__main__':
+ unittest.main()
diff --git a/tokenization_sheetsage2.py b/tokenization_sheetsage2.py
new file mode 100644
index 0000000000000000000000000000000000000000..65c3d2cc13163b69794b6a1c46aa6934aeced47f
--- /dev/null
+++ b/tokenization_sheetsage2.py
@@ -0,0 +1,735 @@
+import re
+import hashlib
+import json
+
+import mir_eval.chord
+import numpy as np
+
+from .chord_spelling_sheetsage2 import normalize_key_name
+
+from .durations_sheetsage2 import DURATION_TEMPLATES, duration_boundaries
+from .labels_sheetsage2 import STRUCTURE_LABELS
+from .schema_sheetsage2 import get_prompt_multitask_schema
+
+
+PROMPT_ORDER = tuple(task.name for task in get_prompt_multitask_schema("v1").tasks)
+
+
+CHROMATIC_SHARPS = (
+ "C",
+ "C#",
+ "D",
+ "D#",
+ "E",
+ "F",
+ "F#",
+ "G",
+ "G#",
+ "A",
+ "A#",
+ "B",
+)
+
+FULL_CHORD_QUALITIES = (
+ "maj",
+ "min",
+ "dim",
+ "aug",
+ "maj7",
+ "min7",
+ "7",
+ "hdim7",
+ "dim7",
+ "minmaj7",
+ "sus2",
+ "sus4",
+ "sus4(b7)",
+ "maj6",
+ "min6",
+)
+
+FULL_CHORD_INVERSIONS = {
+ "maj": ("/2", "/3", "/5"),
+ "min": ("/2", "/b3", "/5"),
+ "maj7": ("/3", "/5", "/7"),
+ "min7": ("/b3", "/5", "/b7"),
+ "7": ("/3", "/5", "/b7"),
+}
+
+
+def build_full_chord_vocabulary():
+ labels = ["N"]
+ for quality in FULL_CHORD_QUALITIES:
+ inversions = FULL_CHORD_INVERSIONS.get(quality, ())
+ for root in CHROMATIC_SHARPS:
+ for inversion in (*inversions, ""):
+ labels.append(f"{root}:{quality}{inversion}")
+ return tuple(labels)
+
+
+FULL_CHORD_VOCABULARY = build_full_chord_vocabulary()
+
+
+class SheetSage2Tokenizer:
+ """Typed prompt and event vocabulary for prompt-conditioned transcription."""
+
+ meter_numerators = tuple(range(1, 33))
+ meter_denominators = (1, 2, 4, 8, 16, 32)
+ n_eighth_positions = 256
+ max_subbeat_shift = 256
+ prompt_capacity = 256
+
+ def __init__(
+ self,
+ audio_length_seconds=300.0,
+ time_hz=100,
+ schema_version="v1",
+ expected_fingerprint=None,
+ ):
+ self.audio_length_seconds = float(audio_length_seconds)
+ self.time_hz = int(time_hz)
+ self.schema = get_prompt_multitask_schema(schema_version)
+ self.schema_version = self.schema.version
+ self.task_specs = self.schema.tasks
+ self.event_field_order = self.schema.event_field_order
+ self.n_time_tokens = int(round(self.audio_length_seconds * self.time_hz))
+ if self.n_time_tokens <= 0:
+ raise ValueError("audio_length_seconds must produce at least one time token")
+
+ self.pad_token = 0
+ self.sos_token = 1
+ self.bos_token = self.sos_token
+ self.eos_token = 2
+ self.out_token = 3
+
+ self.prompt_token_start = 4
+ self.prompt_names = tuple(task.name for task in self.task_specs)
+ if len(self.prompt_names) > self.prompt_capacity:
+ raise ValueError(
+ f"Schema {self.schema_version} has {len(self.prompt_names)} prompts, "
+ f"exceeding immutable capacity {self.prompt_capacity}"
+ )
+ self.prompt_to_id = {
+ name: self.prompt_token_start + index
+ for index, name in enumerate(self.prompt_names)
+ }
+ self.prompt_token_end = self.prompt_token_start + self.prompt_capacity
+
+ self.subbeat_shift_token_start = self.prompt_token_end
+ self.n_subbeat_shift_tokens = self.max_subbeat_shift + 1
+ self.subbeat_shift_token_end = (
+ self.subbeat_shift_token_start + self.n_subbeat_shift_tokens
+ )
+
+ self.time_token_start = self.subbeat_shift_token_end
+ self.time_token_end = self.time_token_start + self.n_time_tokens
+
+ self.meter_pairs = tuple(
+ (numerator, denominator)
+ for numerator in self.meter_numerators
+ for denominator in self.meter_denominators
+ )
+ self.meter_to_id = {meter: index for index, meter in enumerate(self.meter_pairs)}
+ self.meter_token_start = self.time_token_end
+ self.meter_token_end = self.meter_token_start + len(self.meter_pairs)
+
+ self.eighth_position_token_start = self.meter_token_end
+ self.eighth_position_token_end = (
+ self.eighth_position_token_start + self.n_eighth_positions
+ )
+
+ self.structure_labels = tuple(STRUCTURE_LABELS)
+ self.structure_token_start = self.eighth_position_token_end
+ self.structure_token_end = self.structure_token_start + len(self.structure_labels)
+
+ self.key_token_start = self.structure_token_end
+ self.n_key_tokens = 24
+ self.key_token_end = self.key_token_start + self.n_key_tokens
+
+ self.majmin_chord_labels = (
+ "N",
+ *(f"{root}:maj" for root in CHROMATIC_SHARPS),
+ *(f"{root}:min" for root in CHROMATIC_SHARPS),
+ )
+ self.majmin_chord_token_start = self.key_token_end
+ self.majmin_chord_token_end = (
+ self.majmin_chord_token_start + len(self.majmin_chord_labels)
+ )
+
+ self.full_chord_labels = FULL_CHORD_VOCABULARY
+ self.full_chord_to_id = {
+ label: index for index, label in enumerate(self.full_chord_labels)
+ }
+ self.full_chord_token_start = self.majmin_chord_token_end
+ self.full_chord_token_end = (
+ self.full_chord_token_start + len(self.full_chord_labels)
+ )
+
+ self.pitch_token_start = self.full_chord_token_end
+ self.n_pitch_tokens = 256
+ self.pitch_token_end = self.pitch_token_start + self.n_pitch_tokens
+
+ self.duration_templates = DURATION_TEMPLATES
+ self.duration_boundaries = duration_boundaries
+ self.duration_token_start = self.pitch_token_end
+ self.n_duration_tokens = len(self.duration_templates)
+ self.duration_token_end = self.duration_token_start + self.n_duration_tokens
+ self.appended_token_blocks = {}
+ next_token = self.duration_token_end
+ for block in self.schema.appended_token_blocks:
+ start = next_token
+ end = start + len(block.labels)
+ self.appended_token_blocks[block.name] = {
+ "start": start,
+ "end": end,
+ "labels": tuple(block.labels),
+ "output_field": block.output_field or block.name,
+ }
+ next_token = end
+ self.n_tokens = next_token
+
+ self._full_chord_templates = self._build_full_chord_templates()
+ self.vocab_fingerprint = self._compute_fingerprint()
+ if (
+ expected_fingerprint is not None
+ and str(expected_fingerprint) != self.vocab_fingerprint
+ ):
+ raise ValueError(
+ f"Tokenizer fingerprint mismatch for schema {self.schema_version}: "
+ f"expected {expected_fingerprint}, got {self.vocab_fingerprint}"
+ )
+
+ def _compute_fingerprint(self):
+ payload = {
+ "schema_version": self.schema_version,
+ "audio_length_seconds": self.audio_length_seconds,
+ "time_hz": self.time_hz,
+ "prompt_capacity": self.prompt_capacity,
+ "prompt_names": self.prompt_names,
+ "event_field_order": self.event_field_order,
+ "meter_pairs": self.meter_pairs,
+ "structure_labels": self.structure_labels,
+ "majmin_chord_labels": self.majmin_chord_labels,
+ "full_chord_labels": self.full_chord_labels,
+ "duration_templates": tuple(int(value) for value in self.duration_templates),
+ "appended_token_blocks": tuple(
+ (name, block["labels"], block["output_field"])
+ for name, block in self.appended_token_blocks.items()
+ ),
+ "n_tokens": self.n_tokens,
+ }
+ encoded = json.dumps(payload, sort_keys=True, separators=(",", ":")).encode(
+ "utf-8"
+ )
+ return hashlib.sha256(encoded).hexdigest()[:16]
+
+ def get_config(self):
+ return {
+ "schema_version": self.schema_version,
+ "audio_length_seconds": self.audio_length_seconds,
+ "time_hz": self.time_hz,
+ "vocab_fingerprint": self.vocab_fingerprint,
+ "n_tokens": self.n_tokens,
+ }
+
+ def normalize_prompts(self, prompts):
+ names = []
+ seen = set()
+ for prompt in prompts:
+ name = str(prompt).strip()
+ if name.startswith("<|") and name.endswith("|>"):
+ name = name[2:-2]
+ if name not in self.prompt_to_id:
+ raise ValueError(f"Unknown prompt: {prompt!r}")
+ if name not in seen:
+ names.append(name)
+ seen.add(name)
+ names.sort(key=self.prompt_names.index)
+ selected_groups = {}
+ task_by_name = {task.name: task for task in self.task_specs}
+ for name in names:
+ group = task_by_name[name].sampling_group
+ previous = selected_groups.get(group)
+ if previous is not None:
+ raise ValueError(
+ f"Prompts {previous!r} and {name!r} are mutually exclusive "
+ f"within sampling group {group!r}"
+ )
+ selected_groups[group] = name
+ if not names:
+ raise ValueError("At least one task prompt is required")
+ return tuple(names)
+
+ def prompt_to_token(self, prompt):
+ return self.prompt_to_id[self.normalize_prompts((prompt,))[0]]
+
+ def token_to_prompt(self, token):
+ token = int(token)
+ for prompt, prompt_token in self.prompt_to_id.items():
+ if token == prompt_token:
+ return prompt
+ raise ValueError(f"token {token} is not a prompt token")
+
+ def prompt_prefix(self, prompts):
+ prompts = self.normalize_prompts(prompts)
+ return [
+ self.sos_token,
+ *(self.prompt_to_id[prompt] for prompt in prompts),
+ self.out_token,
+ ]
+
+ def subbeat_shift_to_tokens(self, shift):
+ shift = int(shift)
+ if shift < 0:
+ raise ValueError("subbeat shift must be non-negative")
+ tokens = []
+ while shift > self.max_subbeat_shift:
+ tokens.append(self.subbeat_shift_token_start + self.max_subbeat_shift)
+ shift -= self.max_subbeat_shift
+ tokens.append(self.subbeat_shift_token_start + shift)
+ return tokens
+
+ def token_to_subbeat_shift(self, token):
+ token = int(token)
+ if not self.subbeat_shift_token_start <= token < self.subbeat_shift_token_end:
+ raise ValueError(f"token {token} is not a subbeat shift token")
+ return token - self.subbeat_shift_token_start
+
+ def time_id_to_token(self, time_id):
+ time_id = int(time_id)
+ if not 0 <= time_id < self.n_time_tokens:
+ raise ValueError(f"time id {time_id} is outside [0, {self.n_time_tokens})")
+ return self.time_token_start + time_id
+
+ def token_to_time_id(self, token):
+ token = int(token)
+ if not self.time_token_start <= token < self.time_token_end:
+ raise ValueError(f"token {token} is not a time token")
+ return token - self.time_token_start
+
+ def meter_to_token(self, numerator, denominator):
+ meter = (int(numerator), int(denominator))
+ if meter not in self.meter_to_id:
+ raise ValueError(f"Unsupported meter {meter[0]}/{meter[1]}")
+ return self.meter_token_start + self.meter_to_id[meter]
+
+ def eighth_position_to_token(self, position):
+ position = int(position)
+ if not 0 <= position < self.n_eighth_positions:
+ raise ValueError(
+ f"eighth-note position {position} is outside [0, {self.n_eighth_positions})"
+ )
+ return self.eighth_position_token_start + position
+
+ def structure_to_token(self, label):
+ label = str(label)
+ if label not in self.structure_labels:
+ raise ValueError(f"Unknown structure label: {label!r}")
+ return self.structure_token_start + self.structure_labels.index(label)
+
+ def key_to_token(self, key_label, pitch_shift=0):
+ tonic, mode = str(key_label).split(":", 1)
+ tonic_id = mir_eval.chord.pitch_class_to_semitone(tonic)
+ if tonic_id < 0:
+ raise ValueError(f"Invalid key tonic: {key_label!r}")
+ tonic_id = (int(tonic_id) + int(pitch_shift)) % 12
+ minor_modes = {"minor", "dorian", "phrygian", "locrian"}
+ mode_id = 1 if mode.lower() in minor_modes else 0
+ return self.key_token_start + mode_id * 12 + tonic_id
+
+ @staticmethod
+ def _canonical_chord_parts(chord_label, pitch_shift=0):
+ chord_label = str(chord_label).strip()
+ if chord_label in {"N", "X", ""}:
+ return "N", None, None
+ root, suffix = chord_label.split(":", 1)
+ root_id = mir_eval.chord.pitch_class_to_semitone(root)
+ if root_id < 0:
+ return "N", None, None
+ root_id = (int(root_id) + int(pitch_shift)) % 12
+ canonical = f"{CHROMATIC_SHARPS[root_id]}:{suffix}"
+ quality = re.split(r"/", suffix, maxsplit=1)[0]
+ return canonical, root_id, quality
+
+ def chord_majmin_to_token(self, chord_label, pitch_shift=0):
+ canonical, root_id, quality = self._canonical_chord_parts(
+ chord_label,
+ pitch_shift,
+ )
+ if canonical == "N":
+ return self.majmin_chord_token_start
+
+ try:
+ original_root, chroma, _ = mir_eval.chord.encode(str(chord_label))
+ relative = mir_eval.chord.rotate_bitmap_to_root(chroma, original_root)
+ has_minor_third = bool(relative[3] > 0)
+ has_major_third = bool(relative[4] > 0)
+ except Exception:
+ has_minor_third = quality.startswith(("min", "dim", "hdim"))
+ has_major_third = not has_minor_third
+
+ if has_major_third and not has_minor_third:
+ quality_id = 0
+ elif has_minor_third and not has_major_third:
+ quality_id = 1
+ elif quality.startswith(("min", "dim", "hdim")):
+ quality_id = 1
+ elif has_major_third:
+ quality_id = 0
+ else:
+ return self.majmin_chord_token_start
+ return self.majmin_chord_token_start + 1 + quality_id * 12 + root_id
+
+ @staticmethod
+ def _chord_template(chord_label):
+ root, chroma, bass = mir_eval.chord.encode(chord_label)
+ root_chroma = np.zeros(12, dtype=np.float32)
+ root_chroma[root] = 1.0
+ relative_chroma = mir_eval.chord.rotate_bitmap_to_root(chroma, root).astype(
+ np.float32
+ )
+ bass_chroma = np.zeros(12, dtype=np.float32)
+ bass_chroma[(bass + root) % 12] = 1.0
+ return np.concatenate([root_chroma, relative_chroma, bass_chroma])
+
+ def _build_full_chord_templates(self):
+ templates = [np.zeros(36, dtype=np.float32)]
+ templates.extend(
+ self._chord_template(label) for label in self.full_chord_labels[1:]
+ )
+ return np.stack(templates)
+
+ def chord_full_to_token(self, chord_label, pitch_shift=0):
+ canonical, _root_id, _quality = self._canonical_chord_parts(
+ chord_label,
+ pitch_shift,
+ )
+ chord_id = self.full_chord_to_id.get(canonical)
+ if chord_id is None:
+ if canonical == "N":
+ chord_id = 0
+ else:
+ try:
+ target = self._chord_template(canonical)
+ distances = np.abs(self._full_chord_templates - target[None]).sum(
+ axis=1
+ )
+ chord_id = int(np.argmin(distances))
+ except Exception:
+ chord_id = 0
+ return self.full_chord_token_start + chord_id
+
+ def pitch_to_token(self, pitch, track=0, full_melody=False):
+ pitch = int(pitch)
+ track = int(track)
+ if not 0 <= pitch < 128:
+ raise ValueError(f"MIDI pitch {pitch} is outside [0, 128)")
+ if track not in (0, 1):
+ raise ValueError(f"melody track {track} is outside [0, 2)")
+ pitch_id = pitch + (128 if full_melody and track == 1 else 0)
+ return self.pitch_token_start + pitch_id
+
+ def duration_bin_to_token(self, duration_bin):
+ duration_bin = int(duration_bin)
+ if not 0 <= duration_bin < self.n_duration_tokens:
+ raise ValueError(
+ f"duration bin {duration_bin} is outside [0, {self.n_duration_tokens})"
+ )
+ return self.duration_token_start + duration_bin
+
+ def token_to_duration_bin(self, token):
+ token = int(token)
+ if not self.duration_token_start <= token < self.duration_token_end:
+ raise ValueError(f"token {token} is not a duration token")
+ return token - self.duration_token_start
+
+ def appended_label_to_token(self, block_name, label):
+ block = self.appended_token_blocks.get(str(block_name))
+ if block is None:
+ raise ValueError(f"unknown appended token block: {block_name!r}")
+ try:
+ index = block["labels"].index(str(label))
+ except ValueError as exc:
+ raise ValueError(
+ f"unknown label {label!r} for appended block {block_name!r}"
+ ) from exc
+ return block["start"] + index
+
+ def token_to_appended_label(self, token):
+ token = int(token)
+ token_type = self.token_type(token)
+ block = self.appended_token_blocks.get(token_type)
+ if block is None:
+ raise ValueError(f"token {token} is not from an appended token block")
+ return token_type, block["labels"][token - block["start"]]
+
+ def _token_output_field(self, token_type):
+ built_in = {
+ "time": "timestamp",
+ "meter": "rhythm",
+ "eighth_position": "rhythm",
+ "structure": "structure",
+ "key": "key",
+ "chord_majmin": "chord",
+ "chord_full": "chord",
+ "pitch": "melody",
+ "duration": "melody",
+ }
+ if token_type in built_in:
+ return built_in[token_type]
+ block = self.appended_token_blocks.get(token_type)
+ return None if block is None else block["output_field"]
+
+ def _decode_field(self, field, field_tokens, prompts):
+ token_types = [self.token_type(token) for token in field_tokens]
+ if field == "timestamp":
+ return self.token_to_time_id(field_tokens[0]) / self.time_hz
+ if field == "rhythm":
+ rhythm = {}
+ for token, token_type in zip(field_tokens, token_types):
+ if token_type == "meter":
+ rhythm["meter"] = self.meter_pairs[token - self.meter_token_start]
+ elif token_type == "eighth_position":
+ rhythm["eighth_position"] = token - self.eighth_position_token_start
+ return rhythm
+ if field == "structure":
+ return self.structure_labels[field_tokens[0] - self.structure_token_start]
+ if field == "key":
+ key_id = field_tokens[0] - self.key_token_start
+ mode = "minor" if key_id >= 12 else "major"
+ return normalize_key_name(f"{CHROMATIC_SHARPS[key_id % 12]}:{mode}")
+ if field == "chord":
+ if token_types[0] == "chord_majmin":
+ return self.majmin_chord_labels[
+ field_tokens[0] - self.majmin_chord_token_start
+ ]
+ return self.full_chord_labels[
+ field_tokens[0] - self.full_chord_token_start
+ ]
+ if field == "melody":
+ notes = []
+ index = 0
+ while index < len(field_tokens):
+ pitch_id = field_tokens[index] - self.pitch_token_start
+ duration_bin = 0
+ if (
+ index + 1 < len(field_tokens)
+ and self.token_type(field_tokens[index + 1]) == "duration"
+ ):
+ duration_bin = self.token_to_duration_bin(field_tokens[index + 1])
+ index += 2
+ else:
+ index += 1
+ notes.append(
+ {
+ "pitch": pitch_id % 128,
+ "track": int(pitch_id >= 128),
+ "duration_bin": duration_bin,
+ "duration_steps": int(self.duration_templates[duration_bin]),
+ }
+ )
+ return notes
+ values = []
+ for token in field_tokens:
+ block_name, label = self.token_to_appended_label(token)
+ values.append({"block": block_name, "label": label})
+ return values[0] if len(values) == 1 else values
+
+ def decode_sequence(self, tokens, strict=True):
+ """Parse one prompt-conditioned sequence into timed, typed events."""
+ if hasattr(tokens, "detach"):
+ tokens = tokens.detach().cpu().tolist()
+ tokens = [int(token) for token in tokens]
+ while tokens and tokens[-1] == self.pad_token:
+ tokens.pop()
+ if not tokens or tokens[0] != self.sos_token:
+ raise ValueError("sequence must begin with <|sos|>")
+
+ try:
+ out_index = tokens.index(self.out_token, 1)
+ except ValueError as exc:
+ raise ValueError("sequence is missing <|out|>") from exc
+ prompts = tuple(self.token_to_prompt(token) for token in tokens[1:out_index])
+ if strict and self.normalize_prompts(prompts) != prompts:
+ raise ValueError("prompt tokens are not in canonical schema order")
+ active_fields = {
+ task.output_field for task in self.task_specs if task.name in prompts
+ }
+
+ events = []
+ position = out_index + 1
+ current_step = 0
+ saw_eos = False
+ while position < len(tokens):
+ token = tokens[position]
+ if token == self.eos_token:
+ saw_eos = True
+ position += 1
+ break
+ if self.token_type(token) != "subbeat_shift":
+ raise ValueError(f"event at token index {position} has no subbeat shift")
+ shift = 0
+ while (
+ position < len(tokens)
+ and self.token_type(tokens[position]) == "subbeat_shift"
+ ):
+ shift += self.token_to_subbeat_shift(tokens[position])
+ position += 1
+ current_step += shift
+
+ tokens_by_field = {field: [] for field in self.event_field_order}
+ while position < len(tokens):
+ token = tokens[position]
+ token_type = self.token_type(token)
+ if token_type == "subbeat_shift" or token == self.eos_token:
+ break
+ field = self._token_output_field(token_type)
+ if field is None or field not in tokens_by_field:
+ raise ValueError(
+ f"token {token} ({token_type}) has no field in schema "
+ f"{self.schema_version}"
+ )
+ if strict and field not in active_fields:
+ raise ValueError(
+ f"token {token} belongs to inactive output field {field!r}"
+ )
+ tokens_by_field[field].append(token)
+ position += 1
+
+ tokens_by_field = {
+ field: values for field, values in tokens_by_field.items() if values
+ }
+ if not tokens_by_field:
+ if strict:
+ raise ValueError(f"empty event at subbeat {current_step}")
+ continue
+ if strict:
+ for field, values in tokens_by_field.items():
+ types = [self.token_type(value) for value in values]
+ if field == "timestamp" and types != ["time"]:
+ raise ValueError("timestamp event must contain exactly one time token")
+ if field == "rhythm":
+ if types not in (["eighth_position"], ["meter", "eighth_position"]):
+ raise ValueError(f"invalid rhythm payload: {types}")
+ if field in {"structure", "key", "chord"} and len(values) != 1:
+ raise ValueError(f"field {field!r} must contain exactly one token")
+ if field == "melody":
+ index = 0
+ while index < len(types):
+ if types[index] != "pitch":
+ raise ValueError(
+ "melody payload must contain pitch tokens with optional duration"
+ )
+ if index + 1 < len(types) and types[index + 1] == "duration":
+ index += 2
+ else:
+ index += 1
+ events.append(
+ {
+ "subbeat": current_step,
+ "tokens_by_field": tokens_by_field,
+ "values": {
+ field: self._decode_field(field, values, prompts)
+ for field, values in tokens_by_field.items()
+ },
+ }
+ )
+
+ if strict and not saw_eos:
+ raise ValueError("sequence is missing <|eos|>")
+ if strict and position != len(tokens):
+ raise ValueError("non-padding tokens follow <|eos|>")
+ return {
+ "schema_version": self.schema_version,
+ "prompts": prompts,
+ "events": events,
+ "has_eos": saw_eos,
+ }
+
+ def encode_decoded_sequence(self, decoded):
+ """Re-encode the lossless representation returned by decode_sequence."""
+ prompts = self.normalize_prompts(decoded["prompts"])
+ output = self.prompt_prefix(prompts)
+ previous_step = 0
+ for event in decoded["events"]:
+ step = int(event["subbeat"])
+ if step < previous_step:
+ raise ValueError("events must be sorted by non-decreasing subbeat")
+ output.extend(self.subbeat_shift_to_tokens(step - previous_step))
+ previous_step = step
+ tokens_by_field = event["tokens_by_field"]
+ for field in self.event_field_order:
+ output.extend(int(token) for token in tokens_by_field.get(field, ()))
+ if decoded.get("has_eos", True):
+ output.append(self.eos_token)
+ return output
+
+ def token_type(self, token):
+ token = int(token)
+ for name, start, end in (
+ ("subbeat_shift", self.subbeat_shift_token_start, self.subbeat_shift_token_end),
+ ("time", self.time_token_start, self.time_token_end),
+ ("meter", self.meter_token_start, self.meter_token_end),
+ ("eighth_position", self.eighth_position_token_start, self.eighth_position_token_end),
+ ("structure", self.structure_token_start, self.structure_token_end),
+ ("key", self.key_token_start, self.key_token_end),
+ ("chord_majmin", self.majmin_chord_token_start, self.majmin_chord_token_end),
+ ("chord_full", self.full_chord_token_start, self.full_chord_token_end),
+ ("pitch", self.pitch_token_start, self.pitch_token_end),
+ ("duration", self.duration_token_start, self.duration_token_end),
+ ):
+ if start <= token < end:
+ return name
+ if token in self.prompt_to_id.values():
+ return "prompt"
+ for name, block in self.appended_token_blocks.items():
+ if block["start"] <= token < block["end"]:
+ return name
+ if token == self.pad_token:
+ return "pad"
+ if token == self.sos_token:
+ return "sos"
+ if token == self.eos_token:
+ return "eos"
+ if token == self.out_token:
+ return "out"
+ raise ValueError(f"token {token} is outside vocabulary size {self.n_tokens}")
+
+ def describe(self, token):
+ token = int(token)
+ token_type = self.token_type(token)
+ if token_type == "prompt":
+ prompt_by_id = {value: key for key, value in self.prompt_to_id.items()}
+ return f"<|{prompt_by_id[token]}|>"
+ if token_type == "subbeat_shift":
+ return f""
+ if token_type == "time":
+ time_id = token - self.time_token_start
+ return f""
+ if token_type == "meter":
+ numerator, denominator = self.meter_pairs[token - self.meter_token_start]
+ return f""
+ if token_type == "eighth_position":
+ return f""
+ if token_type == "structure":
+ return f""
+ if token_type == "key":
+ key_id = token - self.key_token_start
+ mode = "minor" if key_id >= 12 else "major"
+ label = normalize_key_name(f"{CHROMATIC_SHARPS[key_id % 12]}:{mode}")
+ return f""
+ if token_type == "chord_majmin":
+ return f""
+ if token_type == "chord_full":
+ return f""
+ if token_type == "pitch":
+ pitch = token - self.pitch_token_start
+ track = 1 if pitch >= 128 else 0
+ return f""
+ if token_type == "duration":
+ return f""
+ if token_type in self.appended_token_blocks:
+ block = self.appended_token_blocks[token_type]
+ label = block["labels"][token - block["start"]]
+ return f"<{token_type}_{label}>"
+ return f"<|{token_type}|>"
+
+ 
+
+ 
+
+ 
+
+ 
+
+ 
+
+ 
+