Music Studio
ABC sheet music + Strudel live coding studio with ext-apps widgets, harmony tools, and share links.
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ABC sheet music + Strudel live coding studio with ext-apps widgets, harmony tools, and share links.
Server tool list (7)
Raw names from tools/list. Only developers need these.
| play-sheet-music | Compose and play sheet music with visual notation, multi-instrument audio, and style presets. Write ABC notation for melodies, arrangements, harmonized pieces, or well-known tunes. Add a style (rock, jazz, bossa, waltz, folk...) for automatic drums, bass, and chord accompaniment. Returns a parse-status confirmation and renders the player; it does not return raw audio. Use get-music-guide for genre templates, instrument lists, and ABC syntax reference. The music player renders inline with interactive playback controls. |
| play-live-pattern | Live-code music patterns using TidalCycles mini-notation in JavaScript. Layer drums, synths, and bass with stack(). Choose from 71 drum machine banks, 128 GM instruments, built-in synths, and a full effects chain. Patterns play in a REPL the user can edit directly. Add .pianoroll() to a pattern to show a live piano-roll animation in the widget (or .punchcard()/.scope()/.spectrum() — one draw method per pattern). For a custom animated background, start the code with `await initHydra()` and write Hydra shader code — H(pattern) locks it to the sequence, and `() => a.fft[0]` makes it react to the audio itself (Strudel's output, not the mic); see get-strudel-guide topic 'hydra'. Rather not hand-write one? `visuals` picks a ready-made animation for code that has none (pianoroll/punchcard/scope/spectrum, or hydra-kaleid/pulse/wash/feed). `theme` sets the code-editor colour scheme, which also tints the visuals — match it to the mood (teletext chiptune, sonicPink synthwave, nord ambient, gruvboxDark lofi). Each call creates a NEW player rather than updating the last one — for a tweak, send the whole revised pattern and ask the user to stop the previous one. Use get-strudel-guide for genre templates, sound references, and advanced features like arrangement and sample loading. The Strudel REPL renders inline with an editable code editor, visualizations, and playback controls. |
| get-music-guide | Returns detailed reference material for music composition. Topics: instruments (GM instrument list + combos), drums (patterns + percussion notes), abc-syntax (notation reference), arrangements (multi-voice patterns), genres (complete ABC templates for jazz/blues/folk/rock/bossa/classical), styles (what each style preset does), midi-directives (%%MIDI reference). |
| get-strudel-guide | Reference material for Strudel live coding (performance mode). Topics: mini-notation (pattern syntax), sounds (synths, 71 drum banks, 128 GM instruments, 128 vcsl orchestral/percussion samples), effects (filters, reverb, delay, FM synthesis, envelopes), patterns (transformations, probability, euclidean, arrangement), genres (complete templates: techno/house/dnb/ambient/jazz/lofi/synthwave), tips (tempo, common mistakes, ABC↔Strudel crossover), visuals (pianoroll/scope draw methods, the visuals presets and the theme parameter), hydra (WebGL shader backgrounds: initHydra, H(pattern), the audio-reactive a.fft object, recipes, cheat-sheet), advanced (sample loading, wavetables, ZZFX, continuous signals, chord voicings). |
| search-music-docs | Search detailed documentation for Strudel live coding or ABC/ABCJS notation. Returns relevant code examples and explanations from the official docs. Use this when the curated guides (get-strudel-guide, get-music-guide) don't cover what you need — for specific functions, advanced techniques, or when you're unsure about syntax. Powered by semantic search over strudel.cc and ABCJS docs. |
| analyze-harmony | Music theory helper: name a chord from notes, guess the key, get a progression, or list what fits a key. Returns both the ABC chord-symbol spelling (for play-sheet-music) and the Strudel form (for play-live-pattern). Tasks: detect-chord (notes -> chord name + what to play next), detect-key (notes or chords -> best key + diatonic chords), suggest-progression (key [+ romanNumerals] -> chord symbols), scale-for-chord (chords -> the scale to improvise over each), key-chords (key -> every diatonic triad, seventh, and chord scale). Use it before writing chord symbols for a style preset, or to check a harmonization. |
| convert-abc-to-strudel | Turn an ABC melody into Strudel mini-notation so a scored piece can be remixed live. Returns runnable code — setcps() from the Q: tempo, one [...] bar group per bar inside note("<...>"), with a chord("<...>").voicing() layer stacked alongside it when the ABC has chord symbols (one stack(), because Strudel plays only the last expression) — then pass it to play-live-pattern. Durations become @ weights, rests become ~, triplets nest, the key signature is folded into the note names, and %%MIDI program picks the sound. Lists what was lost (grace notes, dynamics, repeats, lyrics, other voices, inline tempo changes, a short final bar, ABC's own gchord/drum accompaniment). Pick a single voice with `voice`; re-run per voice and stack() them for a full arrangement. |