This is probably because the motet is a piece in and of itself, and not part of a larger whole, and, therefore, requires a more conclusive ending. This extremely complex and cleverly contrived parody, which is nearly literal by measure 89 of the Mass, is nonetheless subtle because of the way it eases in from the previous six measures. Example 8 . Although the Mass is closely related to the motet, it nonetheless remains a unique composition. While the material in the Mass is similar to that of the motet, and, at times is nearly identical, the scale and direction of the Mass makes its use of motet material a constructive device rather than simply a disguised repetition of the same music.
Pastores quidnam vidistis, annunciate nobis in terris.
Natum vidimus, et choros angelorum. Gloria in altissmis Deo, et in terra pax hominubs bonae voluntatis. Lord, have mercy. Christ, have mercy. Lord, have mercy.