https://youtube.com/watch?v=p0GLgOOg_Dg%3Fversion%3D3%26rel%3D1%26fs%3D1%26autohide%3D2%26showsearch%3D0%26showinfo%3D1%26iv_load_policy%3D1%26wmode%3Dtransparent

Don’t worry, the rhythms themselves aren’t random! That would hardly make for a useful drum machine. [kbob]’s creation does have the ability to randomly generate functional rhythms, though, and it’s all done on a breadboard. The core of this tiny drum machine is two Teensy dev boards. One is an FM synth tuned to sound like drums,…

via Modular Drum Machine Creates Random Rhythms — Hackaday