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 Music Meet Tech #17: Lidia Kaminska, Bayanist - Part 2, Clair de lune from Scratch: Piano Lesson #56, m. 41 & 42 Overview, Clair de lune from scratch: Piano Lesson #16.2, Basics of Pedaling, Part 2