Fewer than 50 self-playing Otto Accordions exist, and one is for sale in Minnesota
Before there were robots, self-driving cars and AI, there were automated mechanical music machines: self-playing pianos, ...
Hackaday3y
CD Player Powered 555 Piano Goes Accordion To Plan
Ah yes, the 555 piano project. Be it the Atari Punk Console ... A portmanteau of the Spanish words for “Accordion” and Generator”, the Acordeonador does what no project we’ve seen so ...