What is authentic and Plagal modes?
The general difference is threefold. Range. Authentic has a higher range usually from the subtonic to the octave. Plagal has a smaller range, or at least the melody does not deviate too far from the tonic: it is often between four steps below to the fifth above.
What does Plagal mean in music?
plagal. / (ˈpleɪɡəl) / adjective. (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.
What is the difference between authentic mode and Plagal mode?
The overriding differences between an authentic mode and its corresponding plagal mode are the range or “ambitus” and their dominants. The authentic mode has a range within the octave of its final. The plagal mode has a range within the octave of the fourth below its final to a fifth above.
What is a Plagal scale?
Plagal is the form of the scale where the tonic is placed in the middle of the ambitus (?) a 4th above lowest tone and a 5th below the highest tone. When a plagal scale was used did the melody actually confined to that ambitus? Like is D Hypodorian were the A ‘s the lowest and highest tones.
Why is it called plagal?
A plagal mode (from Greek πλάγιος ‘oblique, sideways, athwart’) has a range that includes the octave from the fourth below the final to the fifth above. In Byzantine modal theory (octoechos), the word “plagal” (“plagios”) refers to the four lower-lying echoi, or modes.
What are the 4 medieval modes?
Medieval modes (also called Gregorian mode or church modes) were numbered, either from 1 to 8, or from 1 to 4 in pairs (authentic/plagal), in which case they were usually named protus (first), deuterus (second), tertius (third), and tetrardus (fourth), but sometimes also named after the ancient Greek tonoi (with which.
What is the meaning of plagal?
1 of a church mode : having the keynote on the fourth scale step — compare authentic sense 4a. 2 of a cadence : progressing from the subdominant chord to the tonic — compare authentic sense 4b.
Is Gregorian chant still used today?
Although Gregorian chant is no longer obligatory, the Roman Catholic Church still officially considers it the music most suitable for worship. During the 20th century, Gregorian chant underwent a musicological and popular resurgence.
What feature do corresponding authentic and plagal modes share?
The authentic and plagal modes share a core species of fifth: the diatonic pitches encompassing the final and a fifth above the final. In Dorian and Hypodorian, the pitches in the species of fifth are D, E, F, G, and A. The authentic and plagal modes also share a species of fourth.
Is Dorian authentic or Plagal?
Modes are divided into two categories: authentic modes and plagal modes. Each plagal mode is associated with an authentic mode. Both have the same notes and the same Final. Some theorists use Greek names such as Dorian, Phrygian, Lydian, and Mixolydian to refer to the authentic modes I, III, V, and VII respectively.
Where are plagal cadences used?
A plagal cadence is a cadence from the subdominant (IV) to the tonic (I). It is also known as the Amen Cadence because of its frequent setting to the text “Amen” in hymns. Here it is being used at the end of The Doxology Hymn. The term “minor plagal cadence” is used to refer to the iv–I progression.
What are the 8 modes of Gregorian chant?
The eight modes Seven of them were given names identical with those used in the musical theory of ancient Greece: Dorian, Hypodorian, Phrygian, Hypophrygian, Lydian, Hypolydian, and Mixolydian, while the name of the eighth mode, Hypomixolydian, was adapted from the Greek.
Which is the best definition of plagal mode?
: a church mode (such as Hypophrygian or Hypomixolydian) with the same final (see final entry 2 sense c) as its parallel authentic mode but with an ambitus a fourth lower A plagal mode is found a fourth below its authentic, and the final of the authentic serves also for the plagal.
Who are the members of the band Mode Plagal?
Mode Plagal is an originally Greek group who perform traditional Greek music blended with jazz, funk and other international styles. The Athens -based band was formed in 1990 by Thodoris Rellos ( saxophone, vocals), Kleon Antoniou ( guitar, vocals) and Takis Kanellos ( drums ). They were joined in 1995 by Antonis Maratos…
Where is the mediant located in plagal mode?
The mediant is named from its position—in the authentic modes—between the final and cofinal. In the authentic modes it is the third degree of the scale, unless that note should happen to be B, in which case C substitutes for it. In the plagal modes, its position is somewhat irregular.
What’s the difference between tone 5 and plagal?
Thus plagal first mode (also known as “tone 5” in the Russian naming system[10]) represents a somewhat more developed and widened in range version of the first mode. The plagal second mode (“tone 6” in the Russian system) has a similar relation to the second mode, and the plagal fourth mode—respectively to the fourth mode.