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 Octatrack + AM Radio = Weekend in Montreal, Korg Polysix + ValhallaRoom = Into the well, Pocket Piano GR + MF-101/103 = Tweak/Improv