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 Man of Constant Sorrow Mandolin Solo with Dyno-Tab ™, Shenandoah Breakdown Bluegrass Guitar Lesson Tab & Audio, Understanding how the Tritone works in Blues Music for Guitar and Piano