St. Ambrose, Bp, Confessor, & Doctor
Penance: Fast & Abstinence
Flowers are permitted.
The organ may be played.
Commemorations: Advent Feria, Vigil of the Immaculate Conception (Mass only)
Mass of the feast after Terce, Commemorations of the Vigil and of the Feria; Proper Last Gospel of the Vigil; where possible, Mass of the Vigil after None, Commemorations of the Feria, 3rd. Orations of the Holy Ghost.
Doxology: Per Annum (through None)
Hymn Tone: Advent (through None)
Lauds: Commemoration of the Feria
Prime: Verse = "Qui venturus es"
Vespers: First Vespers of the following day, Commemoration of the Feria only
Compline: Hymn sung with the Proper Doxology of the Incarnation in the melody of the BVM