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 Julian Rachlin - Master Class - Violin - with Win Htike San, Christian Tetzlaff Violin Master Class - Tal First, J. Haydn - Concerto No.1 in C major for Cello and Orchestra - Zubin Mehta - Cello-Teresa Beldi