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 Sound the Trumpet (Purcell Come Ye Sons of Art III) - CCHS choirs & orchestra in concert 2012-11-08, Make a joyful noise - CCHS A Cappella Choir in concert 2014-04-29, Niska Banja - CCHS A Cappella 2015-03-24