Click on the piano keys or use the keys in the home row or the ones above (sharps and flats). High E is M and low C is A. Change octaves with the buttons or sliders and use sliders for other effects. The cymbal is 2, snare is 2, kick drum is 1 (basic sound), 4 is the high hat. 5 is codeable for other sound effects with the slider 'Drum 5 Sound'. I personally suggest 8 or 11. The 'theremin' style experience can be accessed by clicking and holding the space bar. Record sounds with apps like 'Voice Memos'. Use a desktop or laptop for optimal experience.
