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 The Beatles - Norwegian Wood + piano sheets, Ben E. King - Stand By Me (with the violin solo) + Piano Sheets, The Whistling Gypsy Rover (Pískající cikán) + piano sheets