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 Bleepy Dub Techno On Korg Electribe Es-1, Acidphaze - Theremin Sounds, Oldskool 1991 Style Techno On Korg Electribe Es-1