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 TMEA 2016-2017 Percussion All-State Music: 2 Mallet Etude, TMEA 2016-2017 Percussion All-State Music: 4 Mallet Etude