Computer keys: A W S E D F T G Y H U J K O L P ; ' play notes, Z/X change octave.
Knobs: drag up and down, scroll, Shift+drag for fine control, double-click to reset.
Switches: click a position. The VCO and keyboard OCTAVE levers are momentary: click the top/right half to go up, the bottom/left half to go down. Hold SHIFT for fine knob moves.
Voice mode: press one of the 8 large buttons (when the sequencer is stopped).
PROGRAM/VALUE: drag to change program. WRITE saves to the current slot (stored in this browser). Double-click the display to rename.
EDIT MODE: large buttons 1–4 select Portamento, Bend range, Amp velocity, and Slider assign. PROGRAM/VALUE changes the value.
Sequencer: press REC while stopped and play notes or chords to enter steps one at a time (REST adds a rest). Press REC while playing to record in real time. While the sequencer plays, the 8 large buttons turn steps on or off; 1-8/9-16 switches page.

MIDI in: notes, velocity, pitch bend, mod wheel (CC1 → LFO int), sustain (CC64), program change, and the CCs in the table. Knob moves and keys send MIDI to the selected output. Web MIDI needs Chrome, Edge, or Opera (Firefox asks for a permission add-on).