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 Converted Tau Battlesuit Painting Tutorial by Warpainting Tutorials, The Princess War Gamer (Princess Bride + Monty Python Parody), 40k Rejects Season 2 Episode 5: Blood Angel Flies of Death