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 OMGG perform "California Cottonfields" at 2009 IBMA World of Bluegrass Festival, John Jendzurski at Wind Gap - Folsom Prison Blues, Susie Q cover by AJ Lee