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 Paul McCartney - New ("New" Album) - Piano Tutorial & Cover, Madison Rising - The Star Spangled Banner - Piano Tutorial, How to Play Don't Leave Me (Ne Me Quitte Pas) by Regina Spektor - Piano Tutorial