Flowers are not permitted.
The organ is not played.
Penitential kneeling: Yes, through None/Mass
After None, Mass of preceding Sunday w/out Alleluia & Verse, 2nd. Orations of the BVM, 3rd. Orations "Contra Persecutores" or "Pro Papa", Dismissal = Benedicamus Domino. Folded Chasubles are worn.
No Gloria. No Credo.
Doxology: Per Annum
Hymn Tone: Advent
Lauds: Proper antiphons for the Tuesday before Christmas Eve, Ferial Preces
Prime: Verse = "Qui venturus es"; Ferial Preces
Day hours: Ferial Preces
Vespers: First Vespers of the following day, Commemoration of the Feria via the Great "O Clavis David" Antiphon
Compline: No Preces