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 The Liberty Bell on D/G melodeon, The Puddleduck Polka by Greg Trice - Anahata, melodeon, Pig Dyke Molly: Pig Swill, Day of Dance 2008