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 Chris Brubeck's Triple Play with Dave Brubeck Plays Blue Rondo a la Turk, Chris Brubeck (trombone) plays "(What Did I Do to Be So) Black and Blue" by Fats Waller