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 Agnus Dei - Mass in the Holy Sepulchre with Gregorian Chant sung in Latin - Agnus Dei, Pater Noster - Mass in the Holy Sepulchre with Gregorian Chant sung in Latin -, Entrance Antiphon, Kyrie Eleison - Mass in the Holy Sepulchre with Gregorian Chant sung in Latin