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 MAN OF SORROWS, WHAT A NAME (SATB Choir) - Philip P. Bliss/Diane Hannibal/arr. Brad Nix, CAN'T CARRY THESE BURDENS ALONE (SATB Choir) - John Parker/Michael Barrett, JUST BEYOND THE PALMS (SATB Choir) - Joseph M. Martin/David Angerman