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 Musette by J.S. Bach (Suzuki violin book 2), Keenan performing Gavotte in c minor by Bach (Suzuki cello book 3), Minuet and Trio by Schubert