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 American Folk Blues Festival 1983 feat. Carey Bell, Harmonica Amps Vol.109 Fender Deluxe Reverb (1972), Harmonica Amps Vol.103 Fender Bandmaster (1962/2012)