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 Ariel Horowitz: Bruch Violin Concerto (mvts. 1 and 2), Ariel Horowitz: Prokofiev - Violin Concerto no. 2, op. 63, mvt. 1