Byzantine Chant and the Great
Doxology
Byzantine Chant uses the Octoechos (Greek for eight sounds), which is a strictly a
cappella modal system composed of eight different tones/modes. These tones use
the Pythagorean Diatonic (Tones 1, 4, 5, 8), Enharmonic (Tones 3, 7), and
Chromatic (Tones 2, 6). These are not the same as their Western counterparts
due to their intervals, which are split into 72 microtones instead of 12 half
steps. The Western major scale would thus have an interval pattern
12-12-6-12-12-12-6, whereas the diatonic scale, which this version of the Great
Doxology is sung in, has intervals (beginning at C) of 12-10-8-12-12-10-8.
Within these scales and tones is the ability to
manipulate them to fit the prayer that is sung. The form of each of the verses
of the Great Doxology adheres to the scale of Tone 1 and its properties. What
distinguishes the diatonic scale as that of Tone 1 rather than the others is
the use of the equivalent of D as the tonic so that the interval pattern
becomes 10-8-12-12-10-8-12. Each verse ends on the tonic D with the exception
of the 21st, 22nd, 24th, and 25th
verses which end on the subdominant G. Ending on the tonic note gives a
conclusion to the phrase, whereas ending on the subdominant flows one verse
into the next. The harmony (also known as the ison, a single, low, held note
that supports the melody but does not render the piece polyphonic as it is not
a chord), denoted by the red letters above the staff, also starts and ends on
the tonic or subdominant. The ison of the 13th verse begins on the
dominant low A as a variation to the previous two verses. These basic
structural guidelines do not apply to the middle sections of the verses as the
chanter displays his improvisation throughout the prayer. His improvisation
follows the scale and the correct intervals while not deviating from the tone
or overall theme of the Doxology. The melody flows smoothly up and down and
very few large steps are made; most move one note above or below the note
before.
In order to augment the simple rhythmic structure of
the music, chanters utilize ornamentations to enhance the prayer’s beauty. In
the original Byzantine notation, a set of specific symbols is used to denote
short vocal flourishes (some can be likened to Western trills, turns, and grace
notes). When music is transcribed into Western notation, they are written as standard
eighth or sixteenth notes. The addition of ornamentation is purely dependent on
the words sung in the phrase. For example, in the 15th verse, two
embellishments occur on the words “have” and “fled”. Both contain the same
interval and act as a technical bridge between their respective preceding and
following notes. These and other ornamentations in the Doxology also add a
stressed, powerful mood into the chant by the added emphasis required of the
voice.
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