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 11-String Guitar (Acoustic/Electric Ovation) - "A minor" Chord with Roots E, G and C (Instrumental), pSyCho jOe's Aria Pro II Guitar Solo with Chrome Whammy Bar on Blue Crackle Body