The Norbertine Fathers sing the Signum Magnum – a piece of Gregorian Chant for the Introit of the Solemnity of the Assumption of the Blessed Virgin Mary (August 15th).
Signum magnum apparuit in caelo: mulier amicta sole, et luna sub pedibus ejus, et in capite ejus corona stellarum duodecim. Cantate Domino canticum novum: quia mirabilia fecit.
V. Gloria Patri… Signum magnum…
A great sign appeared in heaven: A woman clothed with the sun and the moon under her feet and on her head a crown of twelve stars. Sing to the Lord a new song: because He has done wonderful things.
V. Glory to the Father… A great sign appeared in heaven…
The text is taken from the Book of Revelation, the first verse of chapter twelve. In the chant, there is a lot of movement and attention on the words “sole” (sun), and “corona stellarum duodecim” (crown of twelves stars) which emphasizes the radiance of the Assumed Mother of God and the joy felt in seeing Our Lady gloriously exalted in heaven.