Missa Cantata (Latin for "sung Mass" or "chanted Mass") is a form of Tridentine Mass defined officially as a sung Mass celebrated without sacred ministers, i.e., deacon and subdeacon. It has sometimes, though rarely, been called Missa cantata sine Ministris (Sung/Chanted Mass without the Ministers). The Ceremonial for the Use of the Catholic Churches in the United States of America (commonly called the "Baltimore Ceremonial") published upon the request of the Third Plenary Council of Baltimore (1884), called it "High Mass without Deacon or Sub-Deacon" (page 67).