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 Werther-Massenet/Leibowitz/Rome Opera House Orchestra-The great Scenes from Werther (RCA, 1962) 2/10, Verdi: Un Ballo in Maschera/Leibowitz/Radio Symphony Orchestra of Paris/Paris Philharmonic Chorus (1950s reel tape) 1/13, Rapsodie Espagnole/Ravel/Leibowitz/ 1/2 Orchestre Radio-Symph