This is the Marian Antiphon for Compline during the seasons of Advent and Christmas. It is used from the First Sunday of Advent until the Feast of the Purification of the Blessed Virgin Mary (February 1).
Alma Redemptoris Mater,
Quæ pervia cæli porta manes,
Et Stella Maris,
Surgere qui curat populo:
Tu quæ genuisti,
Tuum sanctum Genitorem,
Virgo prius ac posterius,
Gabrielis ab ore
Sumens illud Ave,
First Sunday of Advent until December 23:
℣ Angelus Domini nuntiavit Mariæ.
℟ Et concepit de Spiritu Sancto.
From December 24 to February 1:
℣ Post partum, Virgo, inviolata permansisti.
℟ Dei Genitrix, intercede pro nobis.
Words: Herman Contractus, 11th C.
Simple Tone: “Alma Redemptoris Mater (Simplex)” Gregorian Chant, Mode V, traditional.
Solemn Tone:“Alma Redemptoris Mater (Solemnis)” Gregorian Chant, Mode V, traditional.
This text has been translated into English as the following:
Mother of Christ ! Hear Thou Thy People’s Cry