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 Epic Video Game Music #37: vs. Gideon Graves (Scott Pilgrim vs. The World), Disturbingly Epic Video Game Music #6: River Twygz Bed (Super Paper Mario), Epic Video Game Music #19: Level 1 (Sky Shark)