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 Yoko Kanno: Tell me what the rain knows (arr. Joshua C. Agarrado), John Ireland: The Holy Boy, The Undertone (from Preludes (1918)), E.J. Moeran: Windmills, from 'Fancies'—3 pieces for piano