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 Abram Shtern: Mozart - Violin Duo with Zino Vinnikov, Grieg: Sonata for violin and piano No.3 in C minor, 2nd mov, Abram Shtern plays and demonstrates: part 1