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 Dark Drone Ambient [mortum Exabyss] Bones Wrapped In Flesh - 2010, Dark Occult Ambient [mortum Exabyss] Primordial Demon - 2011, Dark Ambient [mortum Exabyss] Unspoken Words - 2011