This has become one of my all-time Marian favorites ever since I first heard it a year and a half ago:
It’s called
Salve Mater Misericordiae.
I don’t know that it is literally
proper to the feast of the Immaculate Conception, but I imagine it is appropriate for any Marian feast day.
If you wish, enjoy a beautiful recording via this youtube video:
youtube.com/watch?v=iuEkEGQvJ0A, which sounds like it is chanted by some monks. Which is the best sounding chant, in my opinion
Translation:
(Refrain)
Salve, mater misericórdiae,
Mater Dei et mater véniae,
Mater spei et mater grátiae,
Mater plena sanctae laetitiae,
O Maria!
Hail mother of mercy,
mother of God and mother of pardon,
mother of hope and mother of grace,
mother full of holy gladness.
O Mary!
First two verses:
- Salve decus humani generis.
Salve Virgo dignior ceteris,
quae virgines omnes transgrederis
et altius sedes in superis.
O Maria!
- Salve felix Virgo puerpera:
Nam qui sedet in Patris dextera,
Caelum regens, terram et aethera,
Intra tua se clausit viscera.
O Maria!
- Hail, honour of the mankind.
Hail worthier Virgin than the other ones
because you overcome all of them
and in the heaven you occupy
the highest seat of honour.
O Mary!
- Hail Blest Virgin yet bearing child:
For he who sits at the Father’s right hand.
The ruler of heaven, of earth and sky,
has sheltered Himself in your womb.
O Mary!