Kyriale heading: “In Festis Solemnibus” (for Friday, 25 December 2026). NOH (1942) ranks feasts as doubles and semidoubles; the 1962 calendar uses classes. The correspondence used here is approximate.
Vespers
Pss. 109, 110, 111, 129, 131: I g, VII a, VII b, IV A*, VIII G · Magnificat: I g2 · Alma Redemptoris Mater · Magnificat antiphon Hódie