Card: article URL, note that the parent dataset is private

README.md

@@ -1,4 +1,5 @@
 ---
+
 license: cc-by-sa-4.0
 pretty_name: Captioned MIDI with ChordStream
 task_categories:
@@ -63,9 +64,8 @@ sequence: one 64-bit token per chord change or silence, carrying the key, the ch
 degree in that key, its pitch-class content, its bass, and its absolute bar, onset and
 length in musical time.
 
-Rows are the first 1,000 `midicaps_prose` rows of
-[PsiPi/captioned-midi-moods-and-genre](https://huggingface.co/datasets/PsiPi/captioned-midi-moods-and-genre),
-with the ChordStream column computed from each row's own `midi` bytes.
+Rows are the first 1,000 `midicaps_prose` rows of `PsiPi/captioned-midi-moods-and-genre`
+(a private dataset), with the ChordStream column computed from each row's own `midi` bytes.
 
 ## Splits
 
@@ -192,4 +192,5 @@ the MIDI files in the same rows.
 ## Citation and further reading
 
 The ChordStream format, its extraction procedure and its measured limitations are
-described in the accompanying write-up: <!-- TODO: article URL -->.
+described in the accompanying write-up:
+<https://huggingface.co/blog/PsiPi/chordstream-a-key-relative-time-anchored-chord-tok>