Ison (music)

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Ison is a drone note, or a slow-moving lower vocal part, used in Byzantine chant and some related musical traditions to accompany the melody, thus enriching the singing. It was not considered to transform it into a harmonized or polyphonic piece.

Contents

History

It is widely believed that ison was first introduced in Byzantine practice in the 16th century. [1] It stresses or supports the melody. [2] Before that Greek church chanting was purely monophonic (as it still remains in some more archaic traditions, such as [[Kyiv's Znamenny chant). The drone practice may have been borrowed from the West, namely from Italy. [3] Traditionally the ison was not notated (see below). The first example of notated ison was not documented until 1847, and the practice of notating the ison did not become widespread for 100 years, or only in the second half of the 20th century. [3]

There is some evidence for a use of a 2nd "auxiliary" ison in Patriarchal chanting practice, that would be pitched on a different tone (usually in a 4th of a 5th from the main ison, in a different tetrachord, but in some cases maybe even in a 2nd), and sang more discreetly, at the same time still effectively introducing the 3rd independent tone in the chant. [3] Simon Karas is known to be interested in a double-ison technique, and he tried to reconstruct how it could sound like in the older 15th- 16th-century practices, when there appeared indeed some first attempts to create a "Native Byzantine alternative to Western polyphony". [4]

The mobility of ison seems to gradually increase with time, with modern ison lines being much more mobile than those known from the end of the 19th century. The main reason for this gradual change obviously lies in the influence of Western music over Byzantine chanting practices. Some chanters however tend to emphasize the influence of Simon Karas, who was a supporter of much more mobile ison. [3]

Chanters holding the ison were (and are) called isokratima (ισοκράτημα) in Greek. [5]

Modern use in Byzantine chant

The use of ison in Byzantine chant is relatively flexible, so the same piece can be performed with isons of various mobility—starting from a stable drone on one note for a whole piece, and up to a more mobile lower tone, changing at least once within each musical phrase. Still ison is never as mobile as the melody, and does not introduce counterpoint in the performance, [6] but rather stresses the melody [2] by introducing a base to pitch stressed or consonant (just) intervals against it. [3]

The main logic of ison is the following: [3] [7]

However, as it was noted above, for the majority of compositions a stable ison staying on the main stable note of the tone would usually work as well. [3] With this in mind, in most traditional Byzantine scores prior to the mid-20th century the ison was not even notated, [3] as it was assumed that to perform it is just too simple to bother to fix it in writing.

For really quick, as well as for extremely slow and ornamental pieces the ison is usually sung without words, just as a kind of "humming", while for the majority of pieces performed in normal tempo the words are supposed to be produced in synchrony with the melody. [7] There is also an "intermediate" approach, when the ison follows the vowels of the text, but not the consonants. The ison is also supposed to be held across the gaps between the phrases, when the leading chanters, singing the melody, catch their breath. [3]

Modern use in other traditions

Apart from Byzantine chant, ison is also used in some Russian traditions, such as Valaam chant. Recently, under the influence of Byzantine chant, Znamenny chant also tends to be performed with the ison. This innovation is rather controversial however, as Znamenny chant follows different musical logic than the Byzantine chant, is less ornamental and mobile on its own, and also does not use different scales for different tones. With ison introduced, Znamenny chant tends sometimes to sound rather dull, and the chants of different tones become more similar, which is not always a desirable effect. [8] Ison is also used in Bulgarian and Serbian chant.

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References

  1. History of Byzantine chant Archived 2008-12-22 at the Wayback Machine at the Divine Music Project of St. Anthony Monastery
  2. 1 2 Introduction Archived 2008-12-25 at the Wayback Machine at the Divine Music Project of St. Anthony Monastery
  3. 1 2 3 4 5 6 7 8 9 Isokratema (Ison, Drone) Archived 2011-07-07 at the Wayback Machine at analogion.com (a collection of answers from leading psaltis)
  4. ISOKRATEMA TECHNIQUE IN MODERN PERFORMANCE PRACTICE Archived 2011-07-07 at the Wayback Machine by Lycourgos Angelopoulos, translated by D. Koubaroulis (within a collection of other materials about ison at analogion.com)
  5. Byzantine Chant History and Theory at holycrossonline.org
  6. An introductory article on psaltic chant
  7. 1 2 Understanding the Byzantine Musical System Using Western Notation and Theory or Name That Tone! by Stanley Takis
  8. Ответы на часто задаваемые вопросы о знаменном пении, project "Дьячье Око" (Russian)