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 K3n12ock's 18" Sundown X Powered By Nendo 3500!, Folk Fest 2012 @Sterling Stage Kampitheater, Alvarez RD 20 12u