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MIDI controllers
Plug in a MIDI controller — knobs, faders, pads, a DJ controller — and play the visuals like an instrument. MIDI works in Chrome, Edge and Firefox (Safari doesn't support it).
Turning it on
Settings → MIDI → Enable MIDI. The browser asks for permission. Your connected inputs are listed, along with the last message received, which is handy for checking a controller is talking.
Knobs and faders: MIDI learn
- Press M next to any slider (it appears once MIDI is on). It shows … while it waits.
- Move a knob or fader. It's now mapped; M stays lit.
Press M again to re-learn. Mappings remember a layer by its position (first layer, second layer…), so they keep working when you load a different preset.
Soft takeover: when a knob's position doesn't match the value on screen (say, after loading a preset), nothing jumps. The value changes only once the knob passes through it.
Knobs you've moved also become modulation sources, so one knob can drive several things at once through ~.
Pads and keys: actions
In Settings → MIDI, choose an action from the list — any keyboard action, such as next preset, blackout, Surprise me, fade or tap — and press Learn pad, then hit a pad or key. Mappings are listed below, each with to remove it. Momentary actions like Flash preset work while the pad is held.
MIDI clock
If your DJ software or drum machine sends MIDI clock, turn on Settings → Beat & analysis → Follow MIDI clock (shown when MIDI is on). The tempo then comes from the clock, not from listening, and the Beat section shows midi.
MIDI mappings are kept in this browser, on this device.