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 Piano Tutorial - The Haunted Mouse - Level 1 - (Lesson), Piano Tutorial - Under the Sea - Level 2B - (Supplemental), Piano Tutorial - The Woodchucks Chucks Wood - Level 2A - (Lesson)