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 Borderlands 2 Soundtrack - 13 - Lynchwood, The Sims Medieval Soundtrack - The Snoozemeister's Lullaby, The Sims Medieval Soundtrack - Music Box 2