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 New Violin Family Orchestra Plays Holberg Suite (2/5), New Violin Family Orchestra Plays Raff Octet in C (iii), New Violin Family Orchestra Plays Serenade for Strings, 4th mvmnt.