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 F. Couperin: La Ténébreuse (Rebecca Pechefsky), Quantz: Capriccio for Solo Flute (Andrew Bolotowsky), J. L. Krebs: Jesu, meine Freude (Brooklyn Baroque & Friends)