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