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 Pavane pour une Infante défunte - electric guitar version (Ravel), Contemporary Modal Solos: V. Hexatonic (Double bass and Piano), Sonata n.1 in B minor -- BWV 1014 (Bach) -- I. Adagio (electric guitar & harpsichord version)