The Music of the Traditional Latin Mass
A short guide for newcomers — so that when the booklets run out, the chant need not be a mystery. Here is what is sung, why it changes, and how to follow along.
Two kinds of sacred music
At a Sung Mass two different things are happening in the music at once, and untangling them is the key to following along.
The Ordinary — the parts whose words are always the same: the Kyrie (Lord, have mercy), Gloria, Credo (the Creed), Sanctus (Holy, Holy, Holy) and Agnus Dei (Lamb of God). The words never change — but the melody rotates with the seasons.
The Propers — the parts whose words and melody change at every single Mass: the Introit (the entrance chant), the Gradual and Alleluia (or, in penitential times, the Tract), the Offertory and the Communion. Each is taken from Scripture and is proper to that day’s feast or season.
The order of a Sung Mass
From beginning to end, here is what is chanted — and whether it belongs to the Ordinary (unchanging words) or the Propers (changing with the day):
| What is sung | Ordinary / Proper |
|---|---|
| Asperges me (or Vidi Aquam in Eastertide) — the sprinkling | Ordinary |
| Introit — the entrance chant | Proper |
| Kyrie eleison | Ordinary |
| Gloria in excelsis (omitted in Advent & Lent) | Ordinary |
| Gradual & Alleluia (or Tract) | Proper |
| Credo — the Creed (on Sundays & greater feasts) | Ordinary |
| Offertory | Proper |
| Sanctus & Benedictus | Ordinary |
| Pater Noster — chanted by the priest | Ordinary |
| Agnus Dei | Ordinary |
| Communion | Proper |
| Ite, Missa est (or Benedicamus Domino) | Ordinary |
Between these, the priest and ministers also chant the Collect, the Epistle, the Gospel and the Preface; the Canon of the Mass is prayed in silence.
The chant settings — the “Mass numbers”
The melodies of the Ordinary are gathered in the Kyriale as numbered settings. The choir chooses one to suit the day; these are the most familiar:
| Mass I — Lux et Origo | Eastertide |
| Mass IV — Cunctipotens Genitor Deus | Feasts of the Apostles & greater feasts |
| Mass VIII — de Angelis | Feasts (the most widely known) |
| Mass IX — Cum Iubilo | Feasts of the Blessed Virgin Mary |
| Mass XI — Orbis Factor | Sundays through the year |
| Mass XVII | Sundays of Advent & Lent |
| Mass XVIII — Deus Genitor alme | Weekdays of Advent & Lent; the simplest |
| Missa pro Defunctis | The Requiem — Masses for the dead |
Our liturgical calendar suggests the setting for each day — though every choir keeps its own custom, so yours may differ.
The four antiphons of Our Lady
The Mass — and the Church’s evening prayer — closes with one of four ancient antiphons to the Blessed Virgin, each belonging to its own stretch of the year:
- Alma Redemptoris Mater — from Advent until the Purification (2 February)
- Ave Regina Caelorum — from the Purification until Holy Week
- Regina Caeli — throughout Eastertide (sung standing, for Paschal joy)
- Salve Regina — the longest season, from after Pentecost until Advent
Asperges & Vidi Aquam
Before the principal Mass on Sundays the priest sprinkles the people with holy water. Through most of the year this is the Asperges me (“Thou shalt sprinkle me”); in Eastertide it becomes the Vidi Aquam (“I saw water”), recalling the waters of baptism and the Resurrection.
How to follow along
You do not need to read Latin or chant notation. A few simple aids:
- This calendar. Open the liturgical calendar and tap any day — it will tell you whether the Gloria and Credo are sung, which Marian antiphon belongs to the season, and the likely chant setting.
- A hand missal. A 1962 missal gives every text in Latin with the English beside it, so you can read along at your own pace.
- Just listen. More than anything, let the chant draw you in. It was made to be prayed, not studied — understanding comes with time.
And when the booklets in the vestibule run out, this page and the calendar are always here in your pocket.
Common Questions
What is the difference between the Ordinary and the Propers of the Mass?
The Ordinary is the set of parts whose words never change — the Kyrie, Gloria, Credo, Sanctus and Agnus Dei. The Propers are the parts whose words change with every Mass — the Introit, Gradual, Alleluia (or Tract), Offertory and Communion, each drawn from Scripture and proper to the day’s feast or season.
What do the ‘Mass numbers’ like Mass VIII mean?
The chant melodies for the Ordinary are collected in a book called the Kyriale, where they are grouped into numbered settings (Mass I through XVIII). Different settings are sung at different times of year — for example Mass VIII (de Angelis) on many feasts, Mass IX (Cum Iubilo) on feasts of Our Lady, and Mass XI (Orbis Factor) on ordinary Sundays.
Do I need to read Latin or chant notation to follow along?
Not at all. Most people simply listen and pray, letting the chant carry them; a hand missal gives the Latin with an English translation side by side. The beauty does the teaching. This calendar will also tell you, for any given day, whether the Gloria and Credo are sung and which Marian antiphon belongs to the season.
Why does the music change so much from week to week?
Because the sacred liturgy lives by the seasons. Penitential times (Advent, Lent) lay aside the Gloria and the Alleluia and wear simpler, more austere chant; feasts and Eastertide break into fuller, more jubilant melodies. The changing music is the Church teaching us the spirit of each day.
See the music of today’s Mass on the liturgical calendar, or find a Traditional Latin Mass near you.
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