THE PROPER CHANTS OF THE MASS
The Propers are the pieces whose text varies according to circumstances.
The principal pieces of the Propers are
- the Introit,
- the Gradual,
- the Alleluia,
- the Offertory
chant,
- the Communion chant.
Introit
The Introit accompanies the entrance procession of the celebrant and his ministers, and
helps the faithful ito enter into the particular mystery being celebrated: it "sets the tone" of the
day, feast or occasion.
The Gradual
The Gradual is one of the reading responses.

- Chant of the gradual by the schola
It is constructed from a form of psalmody with refrain. Originally, the congregation responded
with a simple formula to a soloist who sang the verses of the psalm one by one.
But in the fifth to sixth centuries, a musical enrichment led to curtailing of the literary
texts.
The Alleluia
"Praise the Lord" is the literal translation of this Hebrew word.
At Mass, it was originally a chant reserved for Easter Day alone. From there its use was
extended to Eastertide, then to Sundays of the year, weekly celebrations of the Resurrection.
The offertory
This is not just a "functional" chant but more of an accompaniment to the ceremonies, a
sumptuous "musical offering" of sorts.
The communion
The purpose of this chant is to accompany the procession of those distributing communion.
Also, it frequently seeks to create a synthesis between the
liturgy of the Word and the liturgy of the Eucharist.
THE ORDINARY OF THE MASS

- Entrance chant by the schola
Other than the Proper chants, whose texts vary according to circumstances, the celebration
of the Mass includes chants of texts that are fixed, independent of the day or feast.
The Kyrie
Kyrie eleison is a Greek formula by which the faithful "acclaim their Lord and implore
his mercy." Today this chant is placed at the beginning of the Mass, as part of the
penitential rite, preparing the faithful for the celebration.
The Gloria
This hymn of Eastern origin may date from as early as the second century.
In the Roman liturgy the Gloria originally came into use for the midnight Mass of Christmas
only. Later it was steadily extended to the great feasts of the year and,finally, to Sundays.
The Sanctus
At the beginning of the Eucharistic Prayer the Sanctus is introduced by the great
recitation of the Preface. The Sanctus is the "hymn of the Seraphim", heard in the Temple
of Jerusalem by the prophet Isaiah. It invites the Church on earth to join in the liturgy of
heaven.
The Agnus Dei
This is the chant which accompanies the breaking of the Bread which has just been
consecrated, a necessary breaking which preceeds its distribution at the communion of the
faithful. The time between the fraction of bread and communion is used by the congregation to
"greet with homage and humble supplication the One who has been made present under the
appearance of bread."
THE DIVINE OFFICE
This great daily prayer of the Church consecrates the whole of human time by
divine praise. Seven times a day, and again once every night, the Christian community gathers
together to celebrate this liturgy by and large composed of psalms.
The Antiphons
The chanting of a psalm is framed by a brief piece called an antiphon.
Sung for its own sake, it introduces and concludes the psalm. Like the propers at Mass, proper antiphons of the offices change with the feast or day and give each of the psalms they accompany a particular reading.
The Responses
These are chants which occur between readings from the Bible and from writings of the Church Fathers during the Night Office (Vigils). On great feasts, they follow the reading at first vespers. They are meditative chants, contemplative musical commentaries of the sacred text.
The hymnsThe most popular pieces of the office are undoubtedly the hymns.
Their importance in the Western liturgy was recalled by Vatican II. The hymn sets the tone and helps the faithful enter into the liturgical season or the particular mystery being celebrated. Often it is a simple and melodious composition.
CONCLUSION
At first hearing, Gregorian chant might seem monotonous. Undoubtedly it disconcerts our
modern ears, accustomed to more contrasted music, but often less profound.
In reality the Gregorian repertory is a complex world which unites several centuries of
musical history. It is in fact a world of astonishing variety which mysteriously approximates almost delirious
enthusiasm as well as the most delicate interior realities. It is a paradoxical world where music
blooms amid silence.