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 "Smile" by Nat King Cole - Piano Sheet Music (Teaser), "Unchained Melody" by The Righteous Brothers - Piano Sheet Music (Teaser), "How Long Will I Love You?" by Ellie Goulding - Piano Sheet Music (Teaser)