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 BRASSmafia - tensemble I BRANDENBURG CONCERTO No. 3 - J. S. Bach, arr.C. Mowat, BRASSmafia - tensemble I BLACK SAM (Brasscats) - Chris Hazell