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 Magyar Citera - Hungarian Zither Performance by Teglasi Edina (now Csüllög Edina), Magyar Citera - Hungarian Zither Performance #5, Magyar Citera - Hungarian Zither Performance #4