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SuperCollider Live Coding with ClaudeCollider
claude-collider
Use when live coding music with SuperCollider via ClaudeCollider MCP server.
SKILL.md
Full skill instructions
SuperCollider Live Coding with ClaudeCollider
This skill enables live music synthesis using SuperCollider via the ClaudeCollider MCP server.
Quick Reference
Key Rules
- Drums need
\freq, 48- IMPORTANT Without it, drums sound wrong - Use Pdef for rhythms - Patterns that repeat
- Use Ndef for continuous - Pads, drones, textures
- Symbols not strings -
\kicknot"kick" - Semicolons between statements - No trailing semicolon
- NEVER Synth() inside Ndef - Causes infinite spawning
CC API Reference
The main entry point stored in ~cc. Access subsystems via ~cc.synths, ~cc.fx, ~cc.midi, ~cc.samples, ~cc.recorder, ~cc.state.
CC - Main Class
| Method | Description |
|---|---|
tempo(bpm) | Get/set tempo in BPM |
stop | Stop all Pdefs and Ndefs |
clear | Full reset: free all synths, patterns, effects, samples |
status | Get formatted status string |
reboot(device, numOutputs, onComplete) | Restart the server |
~cc.synths - Synth Definitions
27+ pre-built synths with cc_ prefix.
| Method | Description |
|---|---|
list | Comma-separated list of synth names |
describe | Detailed descriptions with params |
play(name, ...args) | One-shot synth playback |
Usage
~cc.synths.play(\cc_kick, \freq, 48, \amp, 0.8);
~cc.fx - Effects System
18 built-in effects with routing, chaining, and sidechaining.
| Method | Description |
|---|---|
load(name, slot) | Load effect (slot defaults to fx_<name>) |
set(slot, ...args) | Set effect parameters |
bypass(slot, bool) | Bypass/re-enable effect |
remove(slot) | Remove effect |
route(source, target) | Route Pdef/Ndef to effect |
connect(from, to) | Chain effect output to another effect |
sidechain(name, threshold, ratio, attack, release) | Create sidechain compressor |
routeTrigger(source, sidechainName, passthrough) | Route trigger to sidechain |
routeToOutput(source, channels) | Route to hardware outputs |
list | Available effect names |
describe | Effect descriptions with params |
status | Current effects and routing |
Usage
~cc.fx.load(\reverb);
~cc.fx.route(\bass, \fx_reverb);
~cc.fx.set(\fx_reverb, \mix, 0.5, \room, 0.9);
~cc.midi - MIDI Control
| Method | Description |
|---|---|
listDevices | List available MIDI devices |
connect(device, direction) | Connect device (\in or \out) |
connectAll | Connect all MIDI inputs |
disconnect(direction) | Disconnect (\in, \out, or \all) |
play(synthName, channel, mono, velToAmp, ccMappings) | Play synth via MIDI |
stop | Stop current MIDI synth |
status | Get MIDI status |
Usage
~cc.midi.connectAll;
~cc.midi.play(\lead, nil, false, true, (
1: \cutoff, // CC1 -> cutoff
74: (param: \res, range: [0.1, 0.9]) // CC74 -> res with range
));
~cc.samples - Sample Management
Samples from ~/.claudecollider/samples.
| Method | Description |
|---|---|
load(name) | Load sample buffer into memory |
at(name) | Get buffer (nil if not loaded) |
play(name, rate, amp) | One-shot playback |
free(name) | Free buffer |
reload | Rescan directory for new files |
names | Array of sample names |
list | Comma-separated list |
Usage
~cc.samples.load(\kick);
~cc.samples.play(\kick, 1, 0.8);
Pdef(\samp, Pbind(\instrument, \cc_sampler, \buf, ~cc.samples.at(\kick), \dur, 1)).play
~cc.recorder - Audio Recording
Records to ~/.claudecollider/recordings.
| Method | Description |
|---|---|
start(filename) | Start recording (auto-names if nil) |
stop | Stop recording, returns path |
status | Recording status |
isRecording | Boolean |
~cc.state - Bus Management
Named control/audio buses stored in current environment.
| Method | Description |
|---|---|
bus(name, numChannels, rate) | Get or create bus (also sets ~name) |
setBus(name, value) | Set bus value |
getBus(name) | Get bus by name |
freeBus(name) | Free bus |
clear | Free all buses |
Usage
~cc.state.bus(\cutoff, 1, \control);
~cc.state.setBus(\cutoff, 2000);
Synth(\cc_acid, [\cutoff, ~cutoff.asMap]); // Map bus to param
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