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 Chopin - Nocturne Op. 9 no 2 in Two-handed Guitar Tapping, Mozart - Rondo Alla turca (Vadrum's Version) in Two-handed Guitar Tapping