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 sonata K.301 2nd. mov. (モーツァルト Vnソナタ K.301 2楽章), Beethoven violin sonata No.5 "Spring" 1st mov., Dvorak sonatine for violin and piano (ドヴォルザーク VnとPのソナチネ 1楽章)