[Ivan Franco] sent us this great synthesizer project that he’s working ... and a Teensy with up to 80 (!) multiplexed analog inputs that you’ll connect up to whatever hardware you desire.

One avenue few designers have explored is the idea of ‘bowing’ a synth engine, in the manner you would stringed instruments ...

Case in point: [jaromir]’s entry for the Hackaday Prize. It’s an electronic analog synth, in cello form. There’s no reason something like this couldn’t have been built in the 60s ...