Grouping:
Annunciation to the Theotokos (March 25)
These Katabasiae, Odes 1-9, are sung at the Feast of the Annunciation to the Most-Holy Theotokos, March 25th, Tone/Mode 4. "I shall open my mouth . . . Proclaim, O earth, the glad tidings of great joy . . . ."