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 Inside R&D: The Eldrazi in Oath of the Gatewatch, Pro Tour Kaladesh Inside R&D: The Mechanics of Kaladesh, Magic: The Gathering - Inside R&D Magic Origins: Nissa