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 Es ritten drei Reiter (deutsches Volkslied auf der Ukulele) 1777, If Oscar Could Play Uke (based on Schubert's The Trout - die Forelle), Les Géants du Nord (Postcards from Lille) - ukulele