Datasets:

Anhadnull
/

romantic-piano-strudel-300

id stringlengths 3 3	messages listlengths 2 2
000	[ { "role": "user", "content": "give me some warm and expressive solo piano, like chords woven through the notes. use a gentle touch; keep the changes fairly relaxed." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"...
000	[ { "role": "user", "content": "i mean, lightly playful piano with a pretty broad reach across the keys. share the movement between the bass and the upper notes, and use quick key releases with a little ringing sustain." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follo...
000	[ { "role": "user", "content": "a warm and romantic piano bit, kinda chopin-ish. let the spacing between notes vary; let the key hits vary a lot in strength. keep the notes moving at an easy pace." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nset...
001	[ { "role": "user", "content": "yo, urgent and a little shadowy piano. give it a quick stream of notes, with separate notes with some little chords and some weight in the key hits." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nsta...
001	[ { "role": "user", "content": "can you do restless and dark piano? let the lower notes be a little busier. let some notes ring while others stop sooner, with a wide spread of notes." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\ns...
001	[ { "role": "user", "content": "i want a dark and animated piano thing, like liszt-ish. mix gentle notes with stronger accents; give it a quick stream of notes. let the spacing between notes vary." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nset...
002	[ { "role": "user", "content": "can you make a thoughtful and spacious piano bit? let it move without rushing; i want notes with occasional chord clusters and a gentle touch." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n ...
002	[ { "role": "user", "content": "i mean, calm and spacious piano with a pretty broad reach across the keys. let the lower notes be a little busier, and use plenty of pedal so the notes hang around." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nset...
002	[ { "role": "user", "content": "a patient and intimate piano bit, kinda schumann-ish. give the note spacing a bit of ebb and flow; keep a fairly similar weight on the keys. keep the changes fairly relaxed." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the perform...
003	[ { "role": "user", "content": "some quietly brooding piano please. mostly separate piano notes, fairly soft key hits; let it move without rushing." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"~@386 a1@29 ~@136 c...
003	[ { "role": "user", "content": "i mean, quietly sad piano with a wide spread of notes. give the bass plenty to do, and keep a lot of ringing sustain between the notes." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\...
003	[ { "role": "user", "content": "can you give me quietly sad piano, a little brahms-ish? give the phrases a little breathing room. ease off the key hits later on, so yeah." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n not...
004	[ { "role": "user", "content": "some quietly brooding piano please. big handfuls of notes at once, soft-ish playing; keep the notes moving at an easy pace." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"~ d3@75 ~@3...
004	[ { "role": "user", "content": "make it quietly sad, just piano. let the upper notes be busier than the bass, with some room between the low and high notes. let the notes overlap in a wash of pedal." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\ns...
004	[ { "role": "user", "content": "can you give me quietly brooding piano, a little mendelssohn-ish? let it move without rushing. mix gentle notes with stronger accents, so yeah." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n...
005	[ { "role": "user", "content": "can you make a reflective and dark piano bit? keep it active without racing; i want chords woven through the notes and a gentle touch." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"...
005	[ { "role": "user", "content": "i mean, bittersweet piano with a pretty broad reach across the keys. give both the low and high notes something to do, and use plenty of pedal so the notes hang around." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\...
005	[ { "role": "user", "content": "make it kinda schubert-ish on solo piano, reflective and dark. let the notes keep coming, and mix gentle notes with stronger accents." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"b...
006	[ { "role": "user", "content": "can you make a tense and rushing piano bit? send the notes tumbling out quickly; i want single notes and small chords mixed together and plenty of weight on the keys." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\ns...
006	[ { "role": "user", "content": "just a little restless and dark solo piano. keep more movement up top than down low; leave little gaps when the keys come up. use a pretty broad reach across the keys." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\n...
006	[ { "role": "user", "content": "some dark and animated piano, kinda chopin-ish. keep the playing fast and packed, and give it soft touches and firmer hits mixed together. keep the notes spaced pretty evenly." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the perfo...
007	[ { "role": "user", "content": "can you make an open and gentle piano bit? give it a quick stream of notes; i want lots of notes landing together and some weight in the key hits." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack...
007	[ { "role": "user", "content": "make it bright but relaxed, just piano. give the bass most of the movement, with plenty of space between the low and high notes. leave little gaps when the keys come up." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance...
007	[ { "role": "user", "content": "make it kinda liszt-ish on solo piano, lightly playful. make the notes come pretty quickly, and give it soft touches and firmer hits mixed together." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nsta...
008	[ { "role": "user", "content": "some fluttery and animated piano please. separate notes with some little chords, strong key hits; make the notes come really fast." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\"a3@5...
008	[ { "role": "user", "content": "i mean, rushing and romantic piano with a huge reach across the piano. let the upper notes be busier than the bass, and keep a lot of ringing sustain between the notes." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\...
008	[ { "role": "user", "content": "yo, kinda schumann-ish piano, restless and flowing. let the key hits vary a lot in strength, and mix quick notes with a few longer gaps. make the notes come really fast." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance...
009	[ { "role": "user", "content": "make a piano loop that feels intense and serious. keep the fingers moving fast and use thick piano chords, with fairly forceful playing." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(...
009	[ { "role": "user", "content": "i mean, heavy and dramatic piano with plenty of space between the low and high notes. let the upper notes be busier than the bass, and use a mix of held and shorter notes." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performan...
009	[ { "role": "user", "content": "some stormy piano, kinda brahms-ish. keep the playing busy and quick, and keep the key hits fairly consistent. let the spacing between notes vary." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack...
010	[ { "role": "user", "content": "can you make a quietly sad piano bit? keep the notes moving at an easy pace; i want big handfuls of notes at once and soft-ish playing." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n note(\...
010	[ { "role": "user", "content": "i mean, intimate and melancholy piano with a comfortable stretch across the piano. keep more movement up top than down low, and join the notes together rather gently." }, { "role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\ns...

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Romantic Piano Strudel 300

Chat-format pairs mapping a natural-language description of solo piano music to Strudel live-coding code that plays it.

Source and attribution

All music is derived from the MAESTRO dataset (MIDI and Audio Edited for Synchronous TRacks and Organization), made available by Google LLC under CC BY-NC-SA 4.0 (see https://magenta.tensorflow.org/datasets/maestro). This derived dataset is released under the same license (non-commercial, share-alike).

Curtis Hawthorne, Andriy Stasyuk, Adam Roberts, Ian Simon, Cheng-Zhi Anna Huang, Sander Dieleman, Erich Elsen, Jesse Engel, and Douglas Eck. "Enabling Factorized Piano Music Modeling and Generation with the MAESTRO Dataset." ICLR 2019.

No MIDI or audio files are included here.

How it was made

300 clips of 16 seconds each were cut from MAESTRO performances of Romantic-era piano music (Chopin, Schubert, Liszt, Schumann, Brahms, Mendelssohn).
Each clip was converted to a Strudel program (strudel/NNN.js): one cycle = 16 s, note timing follows the performance using @-weighted note/rest steps, with per-note velocities.
Musical features (pulse, key/mode, density, dynamics, etc.) were extracted per clip (metadata/features.jsonl) and used to write descriptive prompts (metadata/prompts.jsonl).

Splits

split	rows	clips
train	690	230
validation	105	35
test	105	35

Each clip has 3 prompt variants. Splits are by clip; no clip appears in more than one split.

Record format

Each line in data/*.jsonl:

{"id": "000", "messages": [
  {"role": "user", "content": "give me some warm and expressive solo piano, like chords woven through the notes. use a gentle touch; keep the changes fairly relaxed."},
  {"role": "assistant", "content": "// one cycle = 16 seconds; timing follows the performance\nsetcps(1 / 16)\nstack(\n  note(\"b3@52 ~@21 ab3@32 ~@30 b3@36 ~@102 ...\")\n    .velocity(\"0.29921@52 ~@21 0.44882@32 ...\") ... )"}
]}

(assistant content truncated here)

Buckets

Per-clip bucket assignments are in metadata/buckets.json; criteria and examples in metadata/BUCKETS.md.

composer	clips
Chopin	83
Schubert	81
Liszt	75
Schumann	30
Brahms	23
Mendelssohn	8

Other dimensions:

tempo: fast ≥120 BPM 104, moderate 80–120 82, unclear pulse 82, slow <80 32
key_mode: minor 102, major 101, ambiguous 97
density: medium 90, busy 90, sparse 60, very busy 60
dynamics: soft / medium / loud, 100 each
code_length: short 100, medium 99, long 101
mood: calm_intimate 95, stormy_dramatic 70, dark_melancholy 55, bright_playful 50, warm_romantic 30

Files

data/ — train/validation/test chat pairs
strudel/ — 300 Strudel programs
metadata/ — prompts.jsonl, features.jsonl, buckets.json, BUCKETS.md, Metadata_romantic_music.csv
evaluate.py — evaluation script (imports music_features and strudel_runtime helper modules from the original project, which are not included here)

Known limitations

Targets contain long lines of counted @-weight notes and rests; small fine-tuned models tend to loop/repeat when generating them.
Tempo estimates have half/double-time ambiguity; key estimates are heuristic.
Prompts are template-generated from extracted features, not human-written.

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