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 Chris Fillmore: Klangbox Guitar Check "The Yell!" n°41, Klangbox Cigarbox Violin n°4 Soundcheck (2), Klangbox Homemade Cigar box Violin no1 Soundcheck