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 Orthodox Byzantine Hymns Good friday, byzantine hymns 2h (second part) greek orthodox chant, Maundy Thursday (second part)- Greek Orthodox byzantine chant - Μεγάλη Πέμπτη