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 Maria Callas - Vissi D'arte, Mario Lanza - Vesti La Giubba (LIVE IN CANADA), Benny Goodman & His Orchestra - Sing, Sing, Sing - #3