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 Mark J. Sliva: Quartet 1 Mvmt 2, George F. Handel: Glory, 7 Sliva Siblings - Corelli Christmas concerto Op. 6 Nr. 8 all movements live, Luke Sliva, violin - Bach Presto from Sonata #1, BWV 1001 live