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 KORG M50 demo - METAL DANCE TECHNO n' Stuff - More COMBIS, "The Siren's Cry" by Gabriel Quintana 2013, KORG M50 demo - Synth Solos, Mellotron, Strawberry Tron Flutes, Stuff n' Solos