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 Dinant 2014 - UENO Kohei (First Violin Sonata, BWV 1001 - Presto by J.S. Bach), Hiroshi Hara "Misterious Morning III" Fuminori Tanada, Jerome Laran "Improvisation pour saxophone soprano"