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 Mandolin tunes. Sailors Bonnet - Irish reel mandolin, Mandolin tunes. Lane to the Glen (Irish reel), Mandolin tunes. Sweeney's Buttermilk (Irish reel)