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 Franz Poenitz - Nordische Ballade, op. 33 - Lorenzo Montenz (harp) - Komos&Co. 2012, Pergolesi - San Guglielmo - Fremi pur quanto vuoi (Angelo) - Vittoria Giacobazzi (voodoo!)