III class
Violet
Mass of the 1st Sunday of Advent; no Gloria or Credo; omit Alleluia with following verse; common Preface
Matins: Invitatorium Regem venturum Dominum; Hymn Verbum supernum; Saturday psalms and antiphons; no Te Deum
Lauds: Saturday psalms and antiphons from the 2nd scheme; Hymn En clara vox
Hours: Saturday psalms with antiphons of the 1st week of Advent
I Vespers: Of the 2nd Sunday of Advent; Hymn Creator Alme siderum