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 HOW TO PLAY HARMONICA IN 3RD POSITION, HOW TO PLAY A "TRAIN" SOLO ON HARMONICA (CHUGGING PATTERNS), Will Wilde - On the Road Again (Canned Heat)