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 Sheku Kanneh-Mason plays Cassado: Danze Final from Cello Suite at BBC Young Musician 2016, Czardas (Csardas) by Monti arranged by Braimah and Sheku Kanneh-Mason