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 Jean Martinon-Sonatine for Violin Solo no. 5 op. 32 no. 1, Francesco Geminiani-Sonata for Violin Solo in B flat Major, Sergei Prokofiev-Sonata for Violin Solo op. 115