The 'O' Antiphons: Latin and English with Gregorian Chant, Old Hymnary and Scripture ReferencesThe 'O' Antiphons: Latin and Greek with Gregorian Chant, Old Hymnary, and Scripture References provides readers with the Great Antiphons, the Magnificat antiphons to be used during Vespers of the last seven days of Advent in the Western Rite of the Catholic Faith. They are also used as the Alleluia verses on the same days during Mass. Each antiphon refers to the prophecy of Isaiah in relation to the coming of the Messiah. The title of each antiphon is