Creating Music with Op Amps

I finally got around to it and built a (very) simple synthesizer! This is still a work in progress. Right now I am using a switch resistor as my keyboard, and it is really fun to play this way—-surprisingly! The goal is to take what I have here, and put it inside a box with 12 keys: 8 keys for a standard musical scale, and 4 additional ones for strange and non-standard pitches! You can check out where I am with this project by clicking the button below or by watching the video to the left!