Click notes to switch them on or off. Pick a preset, or build your own scale or chord. Play it with the buttons or your keyboard: A–L for the scale, Q–P for the octave above, Z–/ for the octave below, and the number keys for the chords of the scale.
C Major
Root note
Note names
Number-key chords
Root octave
C4
Using the built-in synth. Connect Web MIDI to send notes to a hardware or software instrument.