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 Toccata alla celtica for violin & piano by Hans-André Stamm, Rondo alla celtica for Violin & Piano by Hans-André Stamm, F. Couperin Dialogue for organ from "Messe pour les Paroisses"