IV class
Green
Commemoration of Sts. Marius, Martha, Audifax, and Abachum, Martyrs, and of St. Canute, King and Martyr
Mass of preceding Sunday (Green), no Gloria, commemorations added, no Credo, common preface
OR
Mass of either commemorated feast with commemoration of the other, Gloria, no Credo, common preface
Matins: Invitatorium and Hymn per annum as given in the psalter; lessons from occurring scripture, no Te Deum
Lauds: Antiphons and psalms of the feria (first schema); remainder per annum as given in the psalter; oration of the preceding Sunday; commemorations added
Hours: Antiphons and psalms of the feria; remainder per annum as given in the psalter; oration of the preceding Sunday
Vespers: Antiphons and psalms of the feria; remainder per annum as given in the psalter; oration of the preceding Sunday
Compline: Of the feria