31. The antiphons , versicles, responsories, even the lessons are indicated only by their first words. 32. In the Sarum Breviary it was the antiphon from the Third to the Fifth Sundays of Lent. 33. The work is structured in two parts, the text of the antiphon and an extended Alleluia. 34. In presentation the Communio is similar to the Introitus, an antiphon with a series of psalm verses. 35. At the close of the Office, one of four " Marian antiphons " is sung. 36. The choir sings the antiphons , the cantors sing the versicles, and the celebrant sings the collects. 37. During it the proper " Antiphon [ Unitha ] of the Gospel " is sung by the people. 38. An antiphon answering to that " of the mysteries " follows, and then the Creed is said. 39. Only 66 antiphons were recognizably the same, and some 16 of these added words or removed them. 40. In addition the services required antiphons and supplementary motets 9 for each day, 27 in total.
