videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Circuit Bent Bliptronic 5000 glitchy grid synth, Circuit bent modular style Roland TR-626 drum machine, Part 1: Circuit bent Hing Hon EK-001 B&G LED version, 11 mods + opto theremin [full overview]