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 Ex002 How to Play Keyboard - Keyboard Lessons for Beginners, Music Space Episode 13: Singing Tips for Blues, Gospel & Rockabilly with Andy Seymour, Ex006 How to Play Classical Guitar for Kids - Classical Guitar Lessons for Kids Book 1