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. CHOPIN: Op. 28, No. 7 (Prelude), [Fender Rhodes Sound], Reinhold GLIÈRE: Op. 31, No. 2 (Nocturne), Jean-Philippe RAMEAU: 2me Menuet (Nouvelles Suite de Pièces de Clavecin, 1726/27)