The Mass chants are Ingressa (corresponding to the Introit, but without psalm), Psalmellus (Gradual), Cantus (Tract), Offertory, Transitorium (Communion), and, in addition, two antiphons having no counterpart in the Gregorian Mass, one post Evangelium, the other the Confractorium.Amongst other considerations the very modest claim he makes for the saint, "antiphonarium centonem.See the detailed proof for this in Frere's "Introduction".Transcribed by Thomas M.Gregorian chant is the central tradition of Western plainchant, a form of monophonic liturgical chant of Western Christianity that accompanied the celebration of Mass and other ritual services.In general, the chants were learnt by the viva voce method, that is by following the given example orally, which took many years of experience in the Schola Cantorum.Development of earlier plainchant 1.Origins of the new tradition 1.Dissemination and hegemony 1.Medieval and Renaissance music 5.History Gregorian chant was organized, codified, and notated mainly in the Frankish lands of western and central Europe during the 9th and 10th centuries, with later additions and redactions, but the texts and many of the melodies have antecedents going back several centuries earlier.Unity was a central issue in Carolingian days.This practice continued into the lifetime of Francois Couperin, whose Organ Masses were meant to be performed with alternating homophonic Chant.Catholic wing of the Anglican Communion.Organization Gregorian chants are organized into eight modes.The main notes in a hexachord are the dominant and the final.Modes with the same final share certain characteristics, and it is easy to modulate back and forth between them, hence the eight modes fall into four larger groupings based on their finals.Canonical hours have their roots in Jewish prayer hours."Amen" and "alleluia" come from Hebrew, and the threefold "sanctus" derives from the threefold "kadosh" of the Kedusha.Greek "Oxyrhynchus hymn" survived with musical notation, but the connection between this hymn and the plainchant tradition is uncertain.Around 375, antiphonal psalmody became popular in the Christian East; in 386, St.Ambrose introduced this practice to the West.Benedictus of Nursia established what is called the rule of S...