Music Studio

ReturnsReference detailedfor referenceABC materialsheet formusic. musicTopics: composition.genres Topics(complete templates: jazz, blues, folk, rock, bossa, a 3/4 minuet, a lullaby), styles (what each accompaniment preset does), 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).

ReadOnly for a live session opened by play-live-pattern(play-live-pattern session: true):. Reads whether the player is up and what it is playingplayed, its runtime reports (errors, silence, missing sounds, a callback thatand threw)silences, and what the human did since your last read —: taps (cycle and position), changes to the piece's remember() state (with its current values), code they edited and ran, and when theya passedPass theto turnyou, toor you.End. Read it before assuming a piece played, and when the user says it's your turn.played. With wait: 'pass' it LISTENS — holdslistens until the listenerhuman presses Pass —, so you can play a whole back-to-backback-and-forth set fits in one turn: update-session, get-session(wait: 'pass'), answer, listen again. The listener can also End the session from the player; get-session then says so, and the player stops listening for updates.

 ⟨25 unchanged words⟩ ":"Listen instead of just reading: 'pass' holds until the listener presses Pass, 'activity' until they play (a few seconds after their first move).play. Returns at once if that already happened since your last read, andelse after ~40 s if not — call again to keep listening. Lets you stay in the booth for a whole set.","enum":["pass","activity"], ⟨6 unchanged words⟩ 

Reference materialand recipes for Strudel live codingcoding. (performanceMusic: mode).genres Topics(complete templates: mini-notationtechno, (patternhouse, syntaxdnb, ambient, jazz, lofi, synthwave), mini-notation, sounds (synths, 71 drum banks, 128 GM instruments, 128 vcsl orchestral/percussion samples), effects (filters, reverb, delay, FM synthesis, envelopes)patterns, patternstips (transformations, probabilitytempo, euclidean,common arrangementmistakes), genresadvanced (complete templates: techno/house/dnb/ambient/jazz/lofi/synthwave)samples, tips (tempowavetables, common mistakessignals, ABC↔Strudelchord crossovervoicings),. Visuals: visuals (pianoroll/scope draw methods, the visuals presets and the theme, parameterthemes), 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). BeyondOptional musicmodules — patternthe code is real browser JavaScript: stage (your own canvases into Hydra, an ASCII cameraonFrame/onEvent/onTap, cycle/onFrame/onEvent/onTap/saysay), film (music videos and short films: scenes on bars, typewriter text, letterbox, narration), interactive (taps becomeinto notes, call andfaders/pads/xy, responsetilt/mic, aremember() voicefor thatcontrols speaksyou ondraw, thelive beatsessions), craft (what makes a piece land), debugging (what the widgetplayer reports back), gallery (complete pieces — a short film, a spoken duet, a Game of Life composer;pieces; fetch one with `piece`).

 ⟨54 unchanged words⟩  'advanced' for sample loading. For a music video, film or interactive piecefilm: 'craft', then 'stage', 'film', then gallery piece 'first-light'. For taps, controls, a drawn grid or a jam: 'interactive' alone (take only the sections you need), andthen agallery workedpiece example'weather-machine' fromor 'gallery'.'trade-a-beat'.","enum":["mini-notation","sounds"," ⟨19 unchanged words⟩ 

Live-code music patternsin usingStrudel (TidalCycles mini-notation in JavaScript.JavaScript) and play it in a player the user can edit. Layer drums, synths,bass and bassmelody with stack(). Choose from: 71 drum machinedrum-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 showfor a live piano-roll animation in thepiano widgetroll (or .punchcard()/.scope()/.spectrum() —, one draw method per pattern). For a custom animated background, startpass the`visuals` codefor witha `awaitready-made initHydra()`animation and write Hydra shader code — H(pattern) locks it`theme` tofor the sequence, and `() => a.fft[0]` makeseditor itcolours. reactEach tocall thecreates audioa itselfNEW (Strudel'splayer. outputOptional, notwhen theyou mic);want seemore (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, orin hydra-kaleid/pulse/wash/feedbrackets). `theme` sets the code-editor colour: scheme,shader whichbackgrounds alsothat tintsfollow the visualsmusic — match it tostart thewith mood`await initHydra(teletext chiptune)`, sonicPinklock synthwave,to nordthe ambient,beat gruvboxDarkwith lofiH(pattern)., Beyondreact music:to the code is real browser JavaScriptsound —with cycle(), onFrame,=> onEvent(pattern,a.fft[0] fn('hydra'); canvases, onTapscenes and say(text) (a spoken line as a sample)lines buildfor music videos, short films and interactivefilms pieces('stage', and fader('name''film') /; pad('name')taps, /faders, xy('name')pads putand controls onyou thedraw, playerplayed thatby the user performs (each is a pattern, e.g. .gain(fader('rain'))), anduser; tilt() /and mic(), which follow the device's motionphone andon microphonethe wherebrowser allowedplayer (played by hand wherea not);chat's seeframe topicsusually 'stage',blocks 'film',them) ('interactive' and 'gallery'. Each call creates); acomplete NEWpieces player.('gallery'). To keepjam oneback playerand goingforth, —or iteratingto onchange a piece, or playing back-to-back with thewhile userit —plays, pass session: true, then change it withuse update-session (it swaps on the next bar) and read what happened with get-session (runtime errors, the user's taps and edits). Use get-strudel-guide for genre templates, sound references, and advanced features like arrangement and sample loading.get-session.

The Strudel REPL renders inline with an editable ⟨6 unchanged words⟩ 

 ⟨114 unchanged words⟩ :"string"},"session":{"description":"Open a LIVE SESSIONOptional: keep this player stays open as onea performance.live session. update-session swapsthen inswaps new code in on the next bar without a new player, and says whether it ran; get-session reads the player'sreports runtimewhat reportsplayed and what the user diddid. (taps,

ComposeWrite a score in ABC notation and play it as sheet music: witha visualmelody, notationa harmonized piece, multi-instrumenta audiomulti-voice arrangement or a well-known tune, andon styleany presets.of Writethe ABC128 notationGeneral forMIDI melodies,instruments. arrangements,Put harmonizedchord pieces,symbols orabove well-knownthe tunes.notes Addand add a style (rock, jazz, bossa, waltz, folk...) for automatic drums, bass, and chordchords. accompaniment.The Returnsuser acan parse-statusedit confirmationthe andscore rendersin the player;player, itchange doesits notstyle returnand rawinstrument, audio.and Usedownload get-music-guideWAV foror genreMIDI. templates,The instrumentresult lists,confirms the parse; it returns no audio. Start with get-music-guide topic 'genres'; 'abc-syntax' and ABC'instruments' syntaxfor reference.the rest.

The music player renders inline with interactive playback controls.

SwapOnly for a live session. Swaps new patterncode into a livethe session's player — no new player,while the music keeps playing. Send the WHOLE pattern, as you would tofor play-live-pattern. It takes overlands aton the next bar (quantize 1, the default), at the next multiple of n cyclesbars, or at once (0). Patterns run on the session's clock, so: set quantize to your phrase length (an 8-bar phrase → 8). andIf the swap lands on its first bar.player Theanswers codewithin isa syntax-checkedfew first;seconds, the result says whether the player ran it, and its error if not, whenran the player answerscode, withinor aits fewerror. seconds.To Editchange a piece's remember() state, withship a merge, not a new start value (get-strudel-guide topic 'interactive').

ReturnsReference detailedfor referenceABC materialsheet formusic. musicTopics: composition.genres Topics(complete templates: jazz, blues, folk, rock, bossa, a 3/4 minuet, a lullaby), styles (what each accompaniment preset does), 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).

ReadOnly for a live session opened by play-live-pattern(play-live-pattern session: true):. Reads whether the player is up and what it is playingplayed, its runtime reports (errors, silence, missing sounds, a callback thatand threw)silences, and what the human did since your last read —: taps (cycle and position), changes to the piece's remember() state (with its current values), code they edited and ran, and when theya passedPass theto turnyou, toor you.End. Read it before assuming a piece played, and when the user says it's your turn.played. With wait: 'pass' it LISTENS — holdslistens until the listenerhuman presses Pass —, so you can play a whole back-to-backback-and-forth set fits in one turn: update-session, get-session(wait: 'pass'), answer, listen again. The listener can also End the session from the player; get-session then says so, and the player stops listening for updates.

 ⟨25 unchanged words⟩ ":"Listen instead of just reading: 'pass' holds until the listener presses Pass, 'activity' until they play (a few seconds after their first move).play. Returns at once if that already happened since your last read, andelse after ~40 s if not — call again to keep listening. Lets you stay in the booth for a whole set.","enum":["pass","activity"], ⟨6 unchanged words⟩ 

Reference materialand recipes for Strudel live codingcoding. (performanceMusic: mode).genres Topics(complete templates: mini-notationtechno, (patternhouse, syntaxdnb, ambient, jazz, lofi, synthwave), mini-notation, sounds (synths, 71 drum banks, 128 GM instruments, 128 vcsl orchestral/percussion samples), effects (filters, reverb, delay, FM synthesis, envelopes)patterns, patternstips (transformations, probabilitytempo, euclidean,common arrangementmistakes), genresadvanced (complete templates: techno/house/dnb/ambient/jazz/lofi/synthwave)samples, tips (tempowavetables, common mistakessignals, ABC↔Strudelchord crossovervoicings),. Visuals: visuals (pianoroll/scope draw methods, the visuals presets and the theme, parameterthemes), 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). BeyondOptional musicmodules — patternthe code is real browser JavaScript: stage (your own canvases into Hydra, an ASCII cameraonFrame/onEvent/onTap, cycle/onFrame/onEvent/onTap/saysay), film (music videos and short films: scenes on bars, typewriter text, letterbox, narration), interactive (taps becomeinto notes, call andfaders/pads/xy, responsetilt/mic, aremember() voicefor thatcontrols speaksyou ondraw, thelive beatsessions), craft (what makes a piece land), debugging (what the widgetplayer reports back), gallery (complete pieces — a short film, a spoken duet, a Game of Life composer;pieces; fetch one with `piece`).

 ⟨54 unchanged words⟩  'advanced' for sample loading. For a music video, film or interactive piecefilm: 'craft', then 'stage', 'film', then gallery piece 'first-light'. For taps, controls, a drawn grid or a jam: 'interactive' alone (take only the sections you need), andthen agallery workedpiece example'weather-machine' fromor 'gallery'.'trade-a-beat'.","enum":["mini-notation","sounds"," ⟨19 unchanged words⟩ 

Live-code music patternsin usingStrudel (TidalCycles mini-notation in JavaScript.JavaScript) and play it in a player the user can edit. Layer drums, synths,bass and bassmelody with stack(). Choose from: 71 drum machinedrum-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 showfor a live piano-roll animation in thepiano widgetroll (or .punchcard()/.scope()/.spectrum() —, one draw method per pattern). For a custom animated background, startpass the`visuals` codefor witha `awaitready-made initHydra()`animation and write Hydra shader code — H(pattern) locks it`theme` tofor the sequence, and `() => a.fft[0]` makeseditor itcolours. reactEach tocall thecreates audioa itselfNEW (Strudel'splayer. outputOptional, notwhen theyou mic);want seemore (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, orin hydra-kaleid/pulse/wash/feedbrackets). `theme` sets the code-editor colour: scheme,shader whichbackgrounds alsothat tintsfollow the visualsmusic — match it tostart thewith mood`await initHydra(teletext chiptune)`, sonicPinklock synthwave,to nordthe ambient,beat gruvboxDarkwith lofiH(pattern)., Beyondreact music:to the code is real browser JavaScriptsound —with cycle(), onFrame,=> onEvent(pattern,a.fft[0] fn('hydra'); canvases, onTapscenes and say(text) (a spoken line as a sample)lines buildfor music videos, short films and interactivefilms pieces('stage', and fader('name''film') /; pad('name')taps, /faders, xy('name')pads putand controls onyou thedraw, playerplayed thatby the user performs (each is a pattern, e.g. .gain(fader('rain'))), anduser; tilt() /and mic(), which follow the device's motionphone andon microphonethe wherebrowser allowedplayer (played by hand wherea not);chat's seeframe topicsusually 'stage',blocks 'film',them) ('interactive' and 'gallery'. Each call creates); acomplete NEWpieces player.('gallery'). To keepjam oneback playerand goingforth, —or iteratingto onchange a piece, or playing back-to-back with thewhile userit —plays, pass session: true, then change it withuse update-session (it swaps on the next bar) and read what happened with get-session (runtime errors, the user's taps and edits). Use get-strudel-guide for genre templates, sound references, and advanced features like arrangement and sample loading.get-session.

The Strudel REPL renders inline with an editable ⟨6 unchanged words⟩ 

 ⟨114 unchanged words⟩ :"string"},"session":{"description":"Open a LIVE SESSIONOptional: keep this player stays open as onea performance.live session. update-session swapsthen inswaps new code in on the next bar without a new player, and says whether it ran; get-session reads the player'sreports runtimewhat reportsplayed and what the user diddid. (taps,

ComposeWrite a score in ABC notation and play it as sheet music: witha visualmelody, notationa harmonized piece, multi-instrumenta audiomulti-voice arrangement or a well-known tune, andon styleany presets.of Writethe ABC128 notationGeneral forMIDI melodies,instruments. arrangements,Put harmonizedchord pieces,symbols orabove well-knownthe tunes.notes Addand add a style (rock, jazz, bossa, waltz, folk...) for automatic drums, bass, and chordchords. accompaniment.The Returnsuser acan parse-statusedit confirmationthe andscore rendersin the player;player, itchange doesits notstyle returnand rawinstrument, audio.and Usedownload get-music-guideWAV foror genreMIDI. templates,The instrumentresult lists,confirms the parse; it returns no audio. Start with get-music-guide topic 'genres'; 'abc-syntax' and ABC'instruments' syntaxfor reference.the rest.

The music player renders inline with interactive playback controls.

SwapOnly for a live session. Swaps new patterncode into a livethe session's player — no new player,while the music keeps playing. Send the WHOLE pattern, as you would tofor play-live-pattern. It takes overlands aton the next bar (quantize 1, the default), at the next multiple of n cyclesbars, or at once (0). Patterns run on the session's clock, so: set quantize to your phrase length (an 8-bar phrase → 8). andIf the swap lands on its first bar.player Theanswers codewithin isa syntax-checkedfew first;seconds, the result says whether the player ran it, and its error if not, whenran the player answerscode, withinor aits fewerror. seconds.To Editchange a piece's remember() state, withship a merge, not a new start value (get-strudel-guide topic 'interactive').

 ⟨211 unchanged words⟩  a pattern, e.g. .gain(fader('rain'))), and tilt() / mic() follow the device's motion and microphone where allowed (played by hand where not); see topics 'stage', 'film', 'interactive' and  ⟨81 unchanged words⟩ 

 ⟨183 unchanged words⟩  build music videos, short films and interactive pieces;pieces, and fader('name') / pad('name') / xy('name') put controls on the player that the user performs (each is a pattern, e.g. .gain(fader('rain'))), and tilt() / mic() follow the device's motion and microphone where allowed (played by hand where not); see topics 'stage', 'film', 'interactive' and 'gallery'. Each call creates a NEW player ratherplayer. thanTo updatingkeep theone lastplayer onegoing — foriterating on a tweakpiece, sendor playing back-to-back with the wholeuser revised— patternpass andsession: asktrue, then change it with update-session (it swaps on the usernext tobar) stopand read what happened with get-session (runtime errors, the previoususer's one.taps and edits). Use get-strudel-guide for genre templates, sound references, ⟨22 unchanged words⟩ 

 ⟨111 unchanged words⟩ "maxLength":65536,"type":"string"},"session":{"description":"Open a LIVE SESSION: this player stays open as one performance. update-session swaps in new code on the next bar without a new player and says whether it ran; get-session reads the player's runtime reports and what the user did (taps, code edits, handing you the turn). Use it to iterate on a long piece, to check that a piece really played, or to jam back-to-back. Its log (reports, taps, edits, your updates) is kept on the server until 2 hours idle.","type":"boolean"},"theme":{"description":"Editor colour theme; the ⟨236 unchanged words⟩ 

 ⟨183 unchanged words⟩  build music videos, short films and interactive pieces;pieces, and fader('name') / pad('name') / xy('name') put controls on the player that the user performs (each is a pattern, e.g. .gain(fader('rain'))); see topics 'stage', 'film', 'interactive' and 'gallery'. Each call creates a NEW player ratherplayer. thanTo updatingkeep theone lastplayer onegoing — foriterating on a tweakpiece, sendor playing back-to-back with the wholeuser revised— patternpass andsession: asktrue, then change it with update-session (it swaps on the usernext tobar) stopand read what happened with get-session (runtime errors, the previoususer's one.taps and edits). Use get-strudel-guide for genre templates, sound references, ⟨22 unchanged words⟩ 

 ⟨111 unchanged words⟩ "maxLength":65536,"type":"string"},"session":{"description":"Open a LIVE SESSION: this player stays open as one performance. update-session swaps in new code on the next bar without a new player and says whether it ran; get-session reads the player's runtime reports and what the user did (taps, code edits, handing you the turn). Use it to iterate on a long piece, to check that a piece really played, or to jam back-to-back. Its log (reports, taps, edits, your updates) is kept on the server until 2 hours idle.","type":"boolean"},"theme":{"description":"Editor colour theme; the ⟨236 unchanged words⟩ 

 ⟨152 unchanged words⟩ sonicPink synthwave, nord ambient, gruvboxDark lofi). Beyond music: the code is real browser JavaScript — cycle(), onFrame, onEvent(pattern, fn), onTap and say(text) (a spoken line as a sample) build music videos, short films and interactive pieces; see topics 'stage', 'film', 'interactive' and 'gallery'. Each call creates a NEW player rather than  ⟨51 unchanged words⟩ 

 ⟨152 unchanged words⟩ sonicPink synthwave, nord ambient, gruvboxDark lofi). Beyond music: the code is real browser JavaScript — cycle(), onFrame, onEvent(pattern, fn), onTap and say(text) (a spoken line as a sample) build music videos, short films and interactive pieces; see topics 'stage', 'film', 'interactive' and 'gallery'. Each call creates a NEW player rather than  ⟨51 unchanged words⟩