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 There's a Boat That's Leavin' Soon, from Porgy and Bess, Jazz Big Band 'Drum Time' George Vincent featuring 'Suli Drum Machine', Broadway 'River in the Rain' from Big River