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 Mark Lewis - Down Yonder On The Fiddle - www.BluegrassBackingTrax.com, Big Sandy River Fiddle Lesson Preview - BluegrassBackingTrax.com - Mark Lewis, I Exalt Thee - played by Mark Lewis on Violin - www.worshipviolin.com