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 Mozart Violin Concerto No. 4 (K. 218) in D Major 1st Movement (12, with orchestra), Dont Etude Op. 37 No. 10 (10, Violin), Bruch Violin Concerto No. 1 in g Minor 3rd Movement (Anni Yu, 12)