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 PCMB 2011: GLI Performance 7-camera Edit, PCMB 2012 "The Last Dance" Practice Makes Perfect v1.2, PCMB 2008 "Kaleidoscope" - GLI Performance Multi-camera Edit