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 Sibelius Violin Concerto in d minor 1st mvt - Part 2, Sibelius Violin Concerto in d minor 3rd mvt, Shostakovich Cello Concerto - 1st mvt