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 Bach - Nun komm', der Heiden Heiland, BWV 659 (Gerard van Reenen), Basse dance "La Magdalena" - Pietro Bono (1414-1497) - played on cornet, organ and handdrum, C. Saint-Saëns - Prière (Prayer) opus 158