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 Stephen Bennett on harp guitar - IGN 2010-01-26 #04 of 13, Đàn bau - 1 string zither, Đàn tranh - Vietnamese 17 string zither