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 Taschner & Gieseking play Brahms: Violin Sonata op. 108 (live), Taschner & Farnadi play Grieg: Violin Sonata op. 13 (rec. 1960), Gerhard Taschner plays Mendelssohn: Violin Concerto op. 64 (1953)