Chant

“The Church recognizes Gregorian chant as being specially suited to the Roman Liturgy. Therefore, other things being equal, it should be given pride of place in liturgical services.”Gregorian chant is uniquely the Church’s own music. Chant is a living connection with our forebears in the faith, the traditional music of the Roman rite, a sign of communion with the universal Church, a bond of unity across cultures, a means for diverse communities to participate together in song, and a summons to contemplative participation in the Liturgy."
Sing to the Lord (USCCB), 2007 (For more chant by Vianini Giovanni, see here)

VENI CREATOR
Veni, Creator Spiritus
mentes tuorum visita
Imple superna gratia quae
tu creasti pectora.
Qui Paraclitus diceris,
donum Dei Altissimi,
fons vivus, ignis, caritas,
et spiritalis unctio.
Tu septiformis munere,
dexterae paternae digitus,
tu rite promissum Patris,
sermone ditans guttura.
Accende lumen sensibus,
infunde amorem cordibus,
infirma nostri corporis,
virtute firmans perpeti.
Hostem repellas longius,
pacemque dones protinus,
ductore sic te praevio,
vitemus omne noxium.
Per te sciamus da Patrem,
noscamus atque Filium,
teque utriusque Spiritum
credamus omni tempore.
Deo Patri sit gloria,
et Filio qui a mortuis surrexit,
ac Paraclito in saeculorum saecula.
Amen.

COME O CREATORCome, O Creator, Spirit blest,
and in our souls take up Thy rest;
come with Thy grace and heavenly aid
to fill the hearts which Thou hast made.
O comforter, to Thee we cry,
O heavenly gift of God Most High,
O fount of life and fire of love,
and sweet anointing from above.
Thou in Thy sevenfold gifts are known;
Thou, finger of God's hand we own;
Thou, promise of the Father, Thou
Who dost the tongue with power imbue.
Kindle our sense from above,
and make our hearts o'erflow with love;
with patience firm and virtue high
the weakness of our flesh supply.
Far from us drive the foe we dread,
and grant us Thy peace instead;
so shall we not, with Thee for guide,
turn from the path of life aside.
Oh, may Thy grace on us bestow
the Father and the Son to know;
and Thee, through endless times confessed,
of both the eternal Spirit blest.
Now to the Father and the Son,
Who rose from death, be glory given,
with Thou, O Holy Comforter,
henceforth by all in earth and heaven.
Amen.