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 Olivier Messiaen: Couleurs de la cite celeste (Colors of the celestial city) Part 1, Fantasy on Japanese Wood Prints, Op. 211 by Alan Hovhaness (Part 1)