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 Eastman MD505 A style mandolin DEMO $500 no. 6642, Eastman E6OM No. 15505 - Great Fingerstyle Guitar, Eastman AC320B Adirondak/Mahogany Dreadnaught Guitar