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 Sporcle.com Ultimate Video Game Music Quiz (Part 1), Sporcle.Com: 50s, 60s, & 70s TV Shows by Theme Song, Sporcle.com Ultimate Video Game Music Quiz (Part 3)