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 Ben Cockman - Blackberry Blossom - Wayne Henderson Guitar Contest 2012, Mount Airy Fiddler's Convention 2010 - First Place Guitar (Youth) - East Tennessee Blues, Galax Fiddlers Convention 2010 - Youth Bluegrass Fiddle - Beaumont Rag