The Marian Anthems are sung primarily by Roman Catholics particularly in religious communities after Compline. Traditionally, they were also said after Lauds, and after each Hour when sung in choir, if the choir was then to disperse. The name Catholic Church can mean a visible organization that refers to itself as Catholic, or the invisible Christian Church, viz. ... Religion, sometimes used interchangeably with faith, is commonly defined as belief concerning the supernatural, sacred, or divine, and the practices and institutions associated with such belief. ... Compline or Complin is the final church service (or office) of the day in the Christian tradition of canonical hours. ...

Here they are in the original Latin as sung in Roman Catholic religious houses around the world:

Alma Redemptoris Mater Alma Redemptoris Mater or, in English, Loving Mother of our Savior, is one of four liturgical Marian anthems (the other three being: Ave Maria; Salve Regina; and Queen of Heaven, Rejoice) used as a part of the office of compline. ...

(Advent through December 23) Advent (from the Latin Adventus, implicitly coupled with Redemptoris, the coming of the Saviour) is a holy season of the Christian church, the period of expectant waiting and preparation for the celebration of the Nativity of Christ, also known as the season of Christmas. ... December 23 is the 357th day of the year in the Gregorian calendar (358th in leap years). ...

Alma Redemptóris Mater, quae pérvia caeli

porta manes, et stella maris, succúrre cadénti,

súrgere qui curat, pópulo; tu quae genuísti,

natúra miránte, tuum sanctum Genitórem,

Virgo prius ac postérius, Gabriélis ab ore

sumens illud Ave, peccatórum miserére.

V. Angelus Domini nuntiavit Mariae.
R. Et concepit de Spiritu Sancto.

Oremus. Gratiam tuam, quaesumus Domine, mentibus nostris infunde; ut, qui, Angelo nuntiante, Christi Filii tui incarnationem cognovimus; per passionem ejus et crucem, ad resurrectionis gloriam perducamur. Per eumdem Christum Dominum nostrum. R. Amen.

(Christmas through Candlemas) Christmas is an annual holiday that marks the birth of Jesus of Nazareth. ... Candlemas (Russian: Sretenie, Spanish: Candelaria) is a Christian feast commemorating the purification of the Virgin Mary and the presentation of the infant Jesus in the Temple. ...

V. Post partum, Virgo, inviolata permansisti.
R. Dei Genitrix, intercede pro nobis.

Oremus. Deus, qui salutis aeternae, beatae Mariae virginitate fœcunda, humano generi praemia praestitisti: tribue, quaesumus; ut ipsam pro nobis intercedere sentiamus, per quam meruimus auctorem vitae suscipere, Dominum nostrum Jesum Christum Filium tuum. R. Amen.

Ave Regina Caelorum Ave Regina Caelorum is one of four Marian antiphons, with following versicles and prayers, traditionally said or sung after night prayer immediately before going to sleep. ...

(Presentation of the Lord through Good Friday) It has been suggested that Purification of the Virgin be merged into this article or section. ... Good Friday is the Friday before Easter or Pascha (which is on Sunday). ...

Ave, Regína caelórum,

ave Domina angelórum,

salve, radix, salve, porta,

ex qua mundo lux est orta.

Gaude, Virgo gloriósa,

super omnes speciósa;

vale, o valde decóra,

et pro nobis Christum exóra.

V. Dignare me laudare te, Virgo sacrata.
R. Da mihi virtutem contra hostes tuos.

Oremus. Concede, misericors Deus, fragilitati nostrae praesidium; ut, qui sanctae Dei Genitricis memoriam agimus; intercessionis ejus auxilio, a nostris iniquitatibus resurgamus. Per eumdem Christum Dominum nostrum. R. Amen.

Regina Caeli The Regina Coeli (Queen of Heaven) is one of the four seasonal antiphons of the Blessed Virgin Mary, specifically Eastertide, prescribed to be sung or recited in the Liturgy of the Hours after night prayer (compline or vespers), from Holy Saturday to the Saturday after Pentecost. ...

(Easter season) Eastertide, or the Easter Season, begins on Easter Sunday and continues until Pentecost in the Christian liturgical calendar, thus spanning a total of seven weeks. ...

Regina caeli, laetare, allelu#REDIRECT [[]]ja:

Quia quem meruisti portare, alleluja.

Resurrexit sicut dixit, alleluja.

Ora pro nobis Deum, alleluja.

V. Gaude et laetare, Virgo Maria, alleluja.
R. Quia surrexit Dominus vere, alleluja.

Oremus. Deus, qui per resurrectionem Filii tui, Domini nostri Jesu Christi, mundum laetificare dignatus es; praesta, quaesumus; ut, per ejus Genitricem Virginem Mariam, perpetuae capiamus gaudia vitae. Per eumdem Christum Dominum nostrum. R. Amen.

Salve Regina The Salve Regina or is one of four Marian antiphons sung at different seasons. ...

(Trinity Sunday until Advent) Trinity Sunday is the first Sunday after Pentecost in the Western Christian liturgical calendar. ...

Salve, Regína, mater misericórdiae;

vita dulcédo et spes nostra, salve.

Ad te clamámus, éxsules fílii Hevae.

Ad te suspirámus, geméntes et flentes, in hac lacrimárum valle.

Eja ergo, advocáta nostra,

illos tuos misericórdes óculos ad nos convérte.

Et Jesum, benedíctum fructum ventris tui,

nobis post hoc exsílium osténde.

O clemens, o pia, o dulcis Virgo María.

V. Ora pro nobis, sancta Dei Genitrix.
R. Ut digni efficiamur promissionibus Christi.

Oremus. Omnipotens sempiterne Deus, qui gloriosae Virginis Matris Mariae corpus et animam, ut dignum Filii tui habitaculum effici mereretur, Spiritu Sancto cooperante praeparasti: da, ut cujus commemoratione laetamur; ejus pia intercessione, ab instantibus malis, et a morte perpetua liberemur. Per eumdem Christum Dominum nostrum. R. Amen.