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 Etude #9 (20 Etude pour les Timbales) - Jacques Delaclusse, Timpani Concerto by Ney Rosauro - Queen's Percussion Ensembl