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 Mortal Kombat 9 - The Subway Music, Mortal Kombat 9 - House of Pekara Music, Psycho's Heartbeat (Original) - Injustice: Gods Among Us