Semi-Festive Office

D)  The Semifestive Office
            152 (168).  The semifestive Office belongs to feasts of the II class.  It is arranged as follows:

            a)  At Matins, Lauds, and Vespers: everything as in the festive Office;
b)  At Prime: antiphon and psalms are from the Psalter, of the current day of the week; little chapter and the rest are as in the Ordinary; short lesson is of the Season.
At Pretiosa the Gospel is read.
c)  At Terce, Sext, and None: antiphons and psalms from the Psalter for the current week day; the rest, from the feast, as in the Proper or Common.
            d)  Compline: of Sunday.