🎵 Glicol Groovebox
Advanced step sequencer with per-step pitch, velocity, ratcheting, and live Glicol code preview.
Glicol Code
out: sin 0 >> mul 0;What is the Glicol Groovebox?
The Glicol Groovebox is a browser-based step sequencer powered by Glicol — a graph-oriented live-coding language compiled to WebAssembly. It lets you compose rhythmic patterns and synth lines entirely in your browser with zero install, zero account, and zero data sent to any server.
How it works
Each row is a track — choose an instrument (kick, snare, hi-hat, bass, lead, or pad), toggle steps on or off, and press Play. The sequencer generates real-time Glicol DSP code behind the scenes and feeds it to the WASM audio engine running in your browser.
Who is it for?
Musicians and developers who want to sketch beat patterns without opening a DAW. Great for quick rhythmic experiments, lo-fi loops, live-coding demos, or just having fun with generative beats in a browser tab.
Privacy & performance
All audio processing runs locally via the Web Audio API and the Glicol WASM engine. Nothing is recorded or uploaded. The page is intentionally lightweight — no external audio CDN, no account, no cookies.