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 Boom: Program Your Own Drum Machine Patterns - Virtual Instrument for Pro Tools, Synchronic: Tightening up audio loops - Audio Plug-in for Pro Tools, Velvet: Musical Effects - Virtual Instrument for Pro Tools