The "O" Antiphons of Advent
from the Dominican Antiphonary.

"O Sapientia..."    Vespers Antiphon for December 17.
"O Adonai..."    Vespers Antiphon for December 18.
"O Radix Jesse..."   Vespers Antiphon for December 19.
"O Clavis David..."  Vespers Antiphon for December 20.
"O Oriens..."   Vespers Antiphon for December 21.
"O Rex..."   Vespers Antiphon for December 22.
"O Emmanuel..."   Vespers Antiphon for December 23.
The Christmas Proclamation.  For the Midnight Mass, Christmas Eve.