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 Tango in San Telmo (full band version) - from Violin Globetrotters, Dancing in Odessa (Violin Duet) - from Violin Globetrotters, Stoppin' off in Louisiana (full band) - from Violin Globetrotters