page_title: Irmologion
section_title: Organisation of the irmologion
hierarchical_section_title: Irmologion / Organisation of the irmologion
caption_attribution_description: English: Ms. Gr. 929 of Saint Catherine's Monastery at Mount Sinai (Greek heirmologion palimpsest with Old Byzantine Coislin notation using a former tropologion)
context_page_description: Irmologion is a liturgical book of the Eastern Orthodox Church and those Eastern Catholic Churches which follow the Byzantine Rite. It contains irmoi organised in sequences of odes and such a sequence was called canon. These canons of nine, eight, four or three odes are supposed to be chanted during the morning service. The book Irmologion derives from heirmos which means "link". The irmos is a melodic model which preceded the composition of the odes. According to the etymology, the book "collects" the irmoi.
context_section_description: The earliest sources with heirmoi were the tropologion (Georgian iadgari, Armenian šaraknot') which organised hymns of different genres with modal signatures according to the calendar, beginning with the Christmas and Theophany cycle. The book irmologion developed not earlier than during the 10th century (GR-AOml Ms. β.32 is probably the oldest fully notated irmologion).
  Within the Irmologion, the new chant book of the Stoudites' reform, the irmoi are usually arranged according to the eight tones of Byzantine chant either according to the odes (order of the odes, OdO, divided into eight parts according to the echoi, but within each echos all odes are ordered beginning with all first odes of each canon, all second or third odes etc.) or according to the canon (canon order, KaO, divided into eight parts according to the echoi, but the odes within each echos are organised according to the canon of each irmos).  As example for the ode order (OdO), one might study the earlier irmologia of the Greek collection at the library of Saint Catherine's Monastery at the food of Mount Sinai: the manuscripts 929 and 1258 are organised, that the first, second, third, etc. odes are together. Since the second ode is only sung during Lent, there were much less second odes than first or third odes. As example for the canon order (KaO), one might study the very early fully notated manuscript of the Great Lavra on Mount Athos (GR-AOml Ms. β.32 written about 1000 with Chartres notation), the standard example for Coislin notation (F-Pn Ms. Coislin 220), or the later manuscripts of the Sinai collection (ET-MSsc Sin. gr.) such as Ms. 1256 and the first half of 1257. Here each ode has an ode number, such as ωδ α᾽ for the first ode, usually followed by a modal signature corresponding to the echos section. The next ode is mostly ωδ γ᾽ for the third ode, because according to the more common canon the second one is left out. Thus, one canon follows the preceding one until the order is fulfilled. These canons usually follow within each echos section according to the calendaric order. There is no real chronology between both orders, both existed already in the oldest heirmologia and they persisted until the current print editions. It also seems that the earlier manuscripts which still numbered the canons within the canon order, sorted them according to ascribed authors, Ms. Coislin 220 has also more or less concrete descriptions of the festive occasion, and still provides a choice of several canons in different echoi and composed by different authors for the very same feast. The number of canons is higher than in the later heirmologia of the 14th century, and it should be mentioned that certain schools like the one of Germanus I of Constantinople had been completely abandoned in the current print editions of the Orthodox church.
  Concerning the Slavonic reception, first by Cyril and Methodius' students around Clement of Ohrid and Constantine of Preslav, the translators did not very close translations of the Greek hymns, they rather tried to preserve the sophisticated system of the melodic models such as avtomela and irmoi without changing the melodies. Within Slavonic manuscripts, the separation between Irmolog and the Oktoich and other books of the sticherarion was less common, usually the Oktoich books were so voluminous, since they included the irmoi (similar to the composition of the older tropologia which persisted until the 12th century), that they were separated into two volumes—one for Glas I-IV (the authentic modes) and a second for Glas V-VIII (the plagal modes). But there are irmologs provided with znamennaya notation since the 12th century—the irmolog preserved at the Russian State Archive of Ancient Acts (RUS-Mda / ргада fond 381 Ms. 150), for instance. All Old Church Slavonic irmologs are organised in ode order.
  Today the Irmologion is often replaced by another chant book which is called "Anthology of the Orthros" (Ἀνθολογία τοῦ Ὄρθρου or Псалтикиина Утренна) which replaced the earlier Akolouthiai used since the 14th century. Some of these A
caption: Echos devteros part with first ode settings (OdO) of a Greek Heirmologion with Coislin notation as palimpsest over pages of a former tropologion (ET-MSsc Ms. Gr. 929, ff. 17v-18r)
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