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 HARMONICA SLIM - YOU BETTER BELIEVE IT [Vita 138] 1956, R&B * RIVER ROCK - Bob "Froggy" Landers & The Cough Drops [Ensign #3-4014] 1958, I DON'T WANTA - June Bateman & Noble Watts [Clamike 500] 1964