Fix SheetSage2 dependencies and document A100 hardware

Dockerfile

@@ -14,7 +14,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN python -m venv /opt/sheet && /opt/sheet/bin/pip install --no-cache-dir \
     torch==2.8.0 torchaudio==2.8.0 transformers==4.45.2 \
     numpy==1.26.4 scipy==1.15.3 huggingface-hub==0.36.0 \
-    safetensors==0.7.0 soundfile==0.13.1 pretty_midi==0.2.11 mido==1.3.3
+    safetensors==0.7.0 soundfile==0.13.1 pretty_midi==0.2.11 mido==1.3.3 \
+    mir_eval==0.8.2
 
 RUN python -m venv /opt/yue && /opt/yue/bin/pip install --no-cache-dir \
     'https://huggingface.co/m-a-p/YuE2-3B/resolve/29b3558dd46954a0cd9021dc76d5c91864a0f1c7/yue2_infer-0.1.5-py3-none-any.whl'

README.md

@@ -27,9 +27,9 @@ Output audio is downloadable 320 kbit/s CBR MP3. Source recordings remain in
 the Space's temporary job directory; they are not committed or used to train
 models. The Space should remain private while testing personal recordings.
 
-GPU recommendation: L40S 48 GB, one queued inference at a time, with idle
-sleep enabled. Models are downloaded at first use and cached on the Space's
-ephemeral disk. A cold restart can require another download.
+Current hardware request: A100 80 GB, one queued inference at a time, with
+15-minute idle sleep. Models are downloaded at first use and cached on the
+Space's ephemeral disk. A cold restart can require another download.
 
 Model licenses and source: [SheetSage2](https://huggingface.co/m-a-p/SheetSage2),
 [MERT-v2-FullSong](https://huggingface.co/m-a-p/MERT-v2-FullSong),

logic.py

@@ -2,7 +2,6 @@
 
 from __future__ import annotations
 
-from pathlib import Path
 import re
 
 
@@ -62,10 +61,3 @@ def instrumental_abc(native: str, keep_chords: bool = False) -> str:
 def validate_duration(seconds: float) -> None:
     if not 0.4 <= seconds <= MAX_SECONDS:
         raise ValueError(f"Нужен напев от 0,4 до {MAX_SECONDS:g} секунд; сейчас {seconds:.1f} с.")
-
-
-def work_file(root: Path, name: str) -> Path:
-    path = root / name
-    if path.parent != root or path.name != name:
-        raise ValueError("Invalid work file name")
-    return path

pipeline.py

@@ -7,7 +7,6 @@ import json
 import os
 from pathlib import Path
 import subprocess
-import sys
 import tempfile
 import time