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 恆恆拉小提琴 - Violin Concerto in B minor, Op. 35, 3rd movement by Oskar Rieding, 恩恩拉小提琴 - Pupil's Violin Concerto No. 4, 3rd Movement