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 Tuba and Drums by Peter Jarvis, Gary - Buttery Tuba, Peter Jarvis - Tom toms, "Percussion Quartet" by Charles Wuorinen, Peter Jarvis - Conductor