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 "Aqualung" on Eastwood Warren Ellis Signature Tenor Guitar, A Basic Blues Shuffle on My New Blueridge BR-40T Tenor Guitar, Demo of Ovation MM68AX Acoustic/Electric Mandolin