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 George Crumb : Makrokosmos III (Music for a Summer Evening) Mvt 5 "Music of the Starry Night", B. Bartók : Concerto for two pianos and percussion, Sz. 115, 3/3