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 Sonate for Solo Violin, Op. 27 No. 6, Sonata in G minor for Unaccompanied Violin BWV 1001, Concerto for Violin in D Major, Op. 77