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 "Super Mario Brothers" - Ukulele Band w/ Melodica, Ukulele Bass, Percussion, Drum Kit, "Fire" - Spanish Flamenco Ukulele Jimi Hendrix Cover, Tutorial - Basic Percussion and Tapping for the Ukulele - Joey Calfa