to play with your qwerty keyboard:

• WE TYU OP ] = piano black keys
• ASDFGHJKL;'<enter> = piano white keys
• Q = change the waveform
• <space> = lfo trigger (momentarily sets depth value to the trigger depth value)
• Z = octave down
• X = octave up
• C = vcf freq down
• V = vcf freq up
• B = vcf eg range down
• N = vcf eg range up

(you can also use a midi keyboard if your browser supports it)

Web Audio API requires some user interaction to discourage malicious behavior. This start button allows you to explicitly allow the audio playback.