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 Blue Knights Percussion Ensemble - 2015 - "The World's a Stage" - WGI Regionals, Blue Knights Percussion Ensemble 2015 - "The World's a Stage", Blue Knights Percussion Ensemble - 2015 - RMPA State Championships