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 Suzuki Violin Book 1 - Number 1, Variation E - Twinkle, Twinkle, Little Star, Hal Leonard Guitar Book 2 - Page 18 - #42 - Power Chord Shuffle, Hal Leonard Guitar Book 2 - Page 15 - #38 - Joy to the World