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 Cal Jazz Choir - Eleanor Rigby - West Coast A Cappella 2011, Artists in Resonance "Under the Bridge" 01/24/09, California Golden Overtones - "Cyclone" - 11/14/09