As the season of Advent starts this Sunday, so does singing the chant mass setting for penitential seasons.
Chant Mass XVII is for Sundays during Advent and Lent. You can find it in the beginning section of the Traditional Roman Hymnal in the pews, but you can also commonly find it at the very back of the 1962 missals, including with the chant notation!
Please join in singing with the choir for high mass. You can listen to a wonderful rendition of the chant mass setting as well: