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 Sytrus tutorial - growling FM bass sound, FL Studio 3xOsc tutorial - Knife Party-style "whoop" sound, FL Studio tutorial - Glitchy dubstep bass using Granulizer and Slicex