- (of a Gregorian mode) having the final in the middle of the compass.Compare authentic(def 6a).
Origin of plagal
Examples from the Web for plagal
These modes are divided into two classes—the “authentic” and “plagal.”Music in the History of the Western Church
A plagal cadence is one in which the tonic chord is preceded by the sub-dominant chord (IV—I).Music Notation and Terminology
Karl W. Gehrkens
The Plagal Cadence (A-men chord) at the end of the piece has been transcribed as breves instead of semibreves for authenticity.Sixty Years a Queen
Sir Herbert Maxwell
These enharmonic passages recur to satiety, and the abuse of the plagal cadence deprives it of its religious solemnity.The Works of Honor de Balzac
Honor de Balzac
Thus the melody itself was said to be either authentic or plagal, according to whether it had one or two tonics.Critical & Historical Essays
- (of a cadence) progressing from the subdominant to the tonic chord, as in the Amen of a hymn
- (of a mode) commencing upon the dominant of an authentic mode, but sharing the same final as the authentic mode. Plagal modes are designated by the prefix Hypo- before the name of their authentic counterpartsthe Hypodorian mode
Word Origin and History for plagal
1590s, from Medieval Latin plagalis, from plaga "the plagal mode," probably from plagius, from Medieval Greek plagius "plagal," in classical Greek "oblique," from plagos "side" (see plagio-).