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 Ignacio Barra: Tres Mo-Men-Tos - Eduardo Cáceres, Andrés Segovia: Guitar Concerto N°1, Op.99 - Mario Castelnuovo-Tedesco, Roland Dyens: Berimbau - Baden Powell