The keyboard [JenShen] used was a simple Casio keyboard with built-in voices. After tearing out the guts of the keyboard, the only thing that remained is the row of push buttons underneath the keys.

electric pianos and organs - but you also get a decent selection of synth tones from Casio’s archives (you’ll even find a few from the hipster VL-Tone). The semi-weighted keys feel better than ...