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 Old Scotish chant Gloria @ St. John's, Detroit, Ride on, Ride on in Majesty - Palm Sunday 2011 @ St. John's Detroit, Advent Sunday @ St. John's Detroit - Psalm 24 Anglican Chant