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 Trail of Tragedy: The Excavation of the Donner Party Site (1994), Part 2, Spade Cooley performs a medley of fiddle tunes in "The Silver Bandit" (1950)