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 Studio Electronics Tonestar, Charcot Circles, STE16, Quadnic - NAMM 2016, The Modstar 4, Barbed Lines Suite - Studio Electronics Boomstar 4075 Basics by Drew Neumann