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 - DLC3 - The Forge Theme/Music, Borderlands 2 Soundtrack - DLC3 - Badass Crater of Badassitude Theme/Music, Borderlands 2 Soundtrack - DLC2 - Hayter's Folly Theme/Music