An online MIDI step sequencer and curve editor for hardware synths. Draw CC automation, sequence polyphonic chords, and route modular patches directly in your browser.
Interactive MIDI CC Maps & Editors.
Designed for hardware control.
Paint automation shapes directly on step tracks, map MIDI parameters, and evaluate dynamic equations (Sine, Saw, Random) to modulate hardware.
Quickly preview chord degrees, invert shapes, and paint complex structures in polyphonic tracks.
Sync local projects, authenticate securely, and access your sequencer settings and backups globally.
Clone sequencer patterns dynamically using diatonic transposition, retrograde reversal, step-gating, or analog-inspired Drunk drift.
News & Release Notes
Have you ever found yourself in the middle of a synth session, wanting your patch to sound "warmer", "denser", or "more like vintage analogue tape", but ende...
Have you ever wanted to trigger three different hardware synths from a single sequencer track—scaling the volume on synth 2 to 50% for background texture, wh...
Sound design is best experienced hands-on, not buried in static screenshots or zipped .syx files. Whether you are writing a synth tutorial, reviewing gear on...