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 La Danse Macabre Du Vampire (Theatres Des Vampires keyboard cover), Saffron's Curse (Cradle of Filth keyboard cover), In Death's Embrace (Dimmu Borgir keyboard tutorial)