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 Haydn Symphony nº 102 in D major Hob. I:101 "The Clock - Die Uhr", Haydn Die Schopfung The Creation Hob. XXI:2 - 7 of 8, Haydn String Quartet op. 74 nº 3 in g minor. 4th movement: Allegro con brio