IV class
Violet
The feast of St. Matthias is moved to tomorrow due to the leap year
Mass of preceding Sunday (Violet), no Gloria, omit Tract, 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 (second schema); remainder per annum as given in the psalter; oration of the preceding Sunday
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