Oktōēchos (here transcribed "Octoechos"; Greek: ὁ Ὀκτώηχος Greek pronunciation: [okˈtóixos];[1] from ὀκτώ "eight" and ἦχος "sound, mode" called echos; Slavonic: Осмогласие, Osmoglasie from о́смь "eight" and гласъ, Glagolitic: ⰳⰾⰰⱄⱏ, "voice, sound") is the eight-mode system used for the composition of religious chant in Byzantine, Syriac, Armenian, Georgian, Latin and Slavic churches since the Middle Ages. In a modified form the octoechos is still regarded as the foundation of the tradition of monodic chant in the Byzantine Rite today.

Nomenclature

The names ascribed to the eight tones differ in translations into Church Slavonic. The Slavonic system counted the plagioi echoi as glasa 5, 6, 7, and 8. For reference, these differences are shown here together with the Ancient Greek names of the octave species according to the Hagiopolites[2] (see Hagiopolitan Octoechos) and to the chant treatises and tonaries of Carolingian theorists. Fifteenth-century composers like Manuel Chrysaphes, Lampadarios at the Court of Palaiologan Constantinople exchanged the Phrygian with the Lydian. The Armenian names and their temporal cycles are represented in the article about the hymn books octoechos and parakletike.

Byzantine octoechos Church Slavonic osmoglasie Octave species Carolingian octo toni
First (ἦχος πρῶτος)First (гласъ а.)DorianTonus primus / Authentus protus
Second (ἦχος δεύτερος)Second (гласъ в.)PhrygianTonus tertius / Authentus deuterus
Third (ἦχος τρίτος)Third (гласъ г.)LydianTonus quintus / Authentus tritus
Fourth (ἦχος τέταρτος)Fourth (гласъ д.)MixolydianTonus septimus / Authentus tetrardus
Plagal of the First (ἦχος πλάγιος τοῦ πρώτου)Fifth (гласъ є.)HypodorianTonus secundus / Plagis proti
Plagal of the Second (ἦχος πλάγιος τοῦ δευτέρου)Sixth (гласъ ѕ.)HypophrygianTonus quartus / Plagis deuteri
Grave (ἦχος βαρύς)Seventh (гласъ з.)HypolydianTonus sextus / Plagis triti
Plagal of the Fourth (ἦχος πλάγιος τοῦ τετάρτου)Eighth (гласъ и.)HypomixolydianTonus octavus / Plagis tetrardi

Southern Slavs use the Byzantine musical system and, nonetheless, use the variant numbering that is always found in Church Slavonic texts.[3]

History

According to three main periods, which divides the history of the eight-mode system, the former article has been split chronologically:

OctoechosPeriodReference
Hagiopolitan Octoechos6th–13th centuryPseudo-John of Damascus[2]
Papadic Octoechos13th–18th centuryJohn Glykys, John Koukouzeles
Neobyzantine Octoechos18th–21st centuryChrysanthos of Madytos

Analysis

Byzantine Chant performance practice has been computationally compared to the theory by Chrysanthos. The analysis of 94 Byzantine Chants performed by 4 singers showed a tendency of the singers to level theoretic particularities of the echos that stand out of the general norm in the octoechos. In practice, smaller scale degree steps (67-133 cents) appear to be increased and the highest scale step of 333 cents appears to be decreased compared to theory. In practice, the first four scale notes in decreasing order of prominence I, III, II, IV are more prominent than the V., VI., and the VII.[4]

References

  1. ↑ The feminine form ἡ Ὀκτώηχος exists as well, but means the book octoechos.
  2. 1 2 According to the first paragraph of the Hagiopolites, John of Damascus is supposed to be the author of the 9th-century treatise: Raasted, Jørgen, ed. (1983). The Hagiopolites: A Byzantine Treatise on Musical Theory. Cahiers de l'Institut du Moyen-Âge Grec et Latin. Vol. 45. Copenhagen: Paludan.
  3. ↑ Восточно Церковно Пѣнiе – Часть 1 – Воскресникъ, Mount Athos, Ottoman Empire: Zographou Monastery, 1904
  4. ↑ Panteli, Maria; Purwins, Hendrik (2013). "A Quantitative Comparison of Chrysanthine Theory and Performance Practice of Scale Tuning, Steps, and Prominence of the Octoechos in Byzantine Chant". Journal of New Music Research. 42 (3): 205–221. CiteSeerX 10.1.1.678.7791. doi:10.1080/09298215.2013.827215. S2CID 46775312.
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