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 A Composer's Guide to Game Music - Book Trailer, Pt. 2 Vertical Layering - A Composer's Guide to Game Music, Pt. 1 Horizontal Resequencing - A Composer's Guide to Game Music