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 Jolivet - Cinq Incantations pour flute seule - # 5, Telemann - Fantasia in B flat # 4 for solo Flute, J.S. Bach - Sonata in b for Obligato Harpsichord and Flute