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 Clair de Lune - Claude Debussy - Randy George, theremin, Crazy - Gnarls Barkley - Randy George (Crazy Theremin Jam), My Funny Valentine - Randy George, theremin