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 Squier Bullet Stratocaster Electric Guitar Sea Foam Green Check 7/24/16 Japanese Amateur Guitar Lab, Ibanez AW200 Sunburst Acoustic Guitar Sound Check & DEMO 9/30/15