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 Get the Sound #01 - Chainsmokers #Selfie Lead Sound with Sylenth1, CFA-Sound - MonoGrizzly 2.0 Bass VST Synthesizer, Adam Szabo JP6K - Factory Sounds by CFA-Sound