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 Homenaje a Erasmo Capilla - Vivaldi double cello concerto in g minor pt 1, Erasmo Capilla - Tchaikovsky Violin Concerto 1st mov. part 1