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 Mozart: Violin Concerto nº 1 (1º mov. Cadenza K. Mostras) - Pedro Barreto, Bach: Violin Sonata 2 (Grave & Allegro) - Pedro Barreto, Tchaikovsky: Violin Concerto - Pedro Barreto