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 Mozart Violin Concerto No. 4: I. Allegro - Sophie Leruth, violin - Williamsburg Youth Orchestra, Stone Bridge Wind Symphony - When Angels Weep (David Shaffer) - 2012 Band Assessment, Stone Bridge Wind Symphony - Emperata Overture (Claude T. Smith) - 2012 Band Assessment