The choir sing this excerpt from Josquin Desprez' Ave Maria:

Ave vera virginitas,
immaculata castitas,
cuius purificatio
nostra fuit purgatio.

Oh, Mater Dei,
Oh, Mater Dei,
Oh, Mater Dei, memento mei.

which translates as:

Hail, true virginity,
Immaculate chastity,
Whose purification
Was our cleansing.

It doesn't scan in English, but in Latin, it rolls beautifully.

<center><table border=1><tr><td>Ave Vera Virginitas
Ave vera virginitas.not (66.5 k)</td></tr></table></center>