At every Mass we sing or say the words of the Ordinary (the unchangeable parts of the Mass), for example, the Gloria; Holy, holy, holy; and Lamb of God.
In ordinary time—the liturgical season we’re in now—our parish has for quite a few years sung the simple ordinary in English from the third edition of the Roman Missal. In Lent (and sometimes in Advent) we have sung the same ordinary but in Latin.
This Advent, which begins Sunday, November 29, we will sing some parts of the ordinary in Latin—notably the Sanctus (Holy, holy, holy) and Agnus Dei (Lamb of God).
When the Kyrie (Lord have mercy) is sung, we’ll continue using the setting in Greek from the Roman Missal:
The Gloria is not sung during Advent except on solemnities such as Immaculate Conception, which falls on December 8.
The Sanctus (Holy, holy, holy) we’ll be singing has virtually the same tune as the English version:
After the consecration, we will sing the same memorial acclamation we’ve been using:
As with the Sanctus, the melody of the Agnus Dei (Lamb of God) we will sing is almost identical to the English version:
Here are videos for those who would like to learn each chant: