What MBP Is Actually Restoring
Mastering Byzantine Polyphony is visibly revisionist: Staff notation, equal temperament, formal modal analysis, Western theoretical terminology, counterpoint and polyphony. A certain shock to the system to say the least. Not to mention, it flatly rejects a number of late explanations that entered modern Byzantine theory without adequately describing the music itself. But that’s just the visible layer.
Less obvious is that the same method restores an older, long-dormant tradition. The historical case that Ancient Greek music admitted polyphony is developed elsewhere, that is not the restoration discussed here. We are talking about a hidden architecture that once connected musical theory, the Eight Tones, melodic form, hymnography, the calendar and the order of worship. A structure that still survives, barely.
From Mode to Tone
In the earliest Byzantine system, Tone and Mode were essentially identical. Take the note Pa, establish the 1st Tone. Go up a step, take Vu, establish the 2nd, etc. As centuries passed and the repertory expanded, the system evolved.
Today, a Byzantine Tone is a superset. It has become a calendar, hymnological and musical entity. A higher-order category capable of organizing several distinct musical behaviors. It employs different Modes according to melodic style and function. Its syllabic, solemn and elaborate forms may differ substantially. The Grave Tone provides an obvious example: repertory transmitted under this single nominal Tone can move through bright major material in one melodic class and Locrian material in another.
Liturgical development added another layer. A Tone can determine or constrain hymnological material, recur at particular positions in a service, participate in the eight-week cycle, interact with the eleven Eothina, and change its realization according to the kind of hymn being sung or where the Bishop is standing at a specific point of the service. For example, an apolytikion set to a model melody (prosomoion) whose model is in Nenano, the apolytikion being the primary-hymn of the day, is never sung in Nenano. It’s always sung in Mixolydian by an unwritten exception. This is the precise hymn sung when the bishop stands at the Solea awaiting the Little Entrance with the gospel. The nominal Tone behaves differently precisely because of its position at a structurally significant coordinate of the service.
What we have here is an organized, multi-dimensional musical-liturgical system. Modern theory describes its components in isolation, barely scratching the surface.
What Survived
The so-called Unwritten Typikon is particularly revealing.
Asterios Devrelis in his book series Musical Helm explicitly describes an Unwritten Typikon (Άγραφο Τυπικό) governing the Tones in which Doxologies, Cherubic Hymns and Communion Hymns should be sung. He records both feast-related prescriptions and a recurring weekday system for Cherubic and Communion hymns. Filippos Oikonomou preserves the same tradition independently in his series Byzantine Music and Psalmodia.
The feast prescriptions are not difficult to decode: with one single exception, their Tone follows the Tone of the Katavasiae, and for good reason: to preserve a uniform experience throughout the liturgy, especially if the Katavasia of the 9th ode is sung in place of “Axion Estin“. Devrelis demonstrates the same principle elsewhere, noting that on major feasts the Doxology follows the Tone of the Doxastikon or Kai nyn while on Sundays it is customary to follow the Tone of the week. These are just practical, structural arrangements.
The weekday assignments, however, are different. They preserve an older attempt to associate recurring divisions of liturgical time with particular musical categories. Through extensive independent research, MBP has discovered that the transmitted tables are only partly correct. MBP also plainly rejects the rule matching Sunday’s doxology to the Tone of the week. Yet these inherited errors are invaluable because they are not random. They represent the surviving traces of a system whose correspondence was remembered more faithfully than the formula used to calculate it. Later musicians inherited the assignment and attempted to explain it through whatever limited theoretical or theological vocabulary was available to them. “Wednesday, the day of the Theotokos? Chant 4th Tone.” Not so fast. The correct tone is Plagal 1st.
MBP reconstructs the correct mapping.
The Older Structure Behind It
The Unwritten Typikon is only one surviving fragment. Earlier Greek musical theory preserves classifications that become relevant once the later Byzantine categories are properly separated. Manuel Bryennios is particularly important because his theoretical organization preserves relationships that modern terminology tends to collapse into flat definitions. Bryennios preserved the right categories, even if his manual assignment of them was flawed.
Another fragment appears in the New Method itself. Chrysanthos mapped the seven Byzantine pitch degrees using names constructed around the first seven letters of the Greek alphabet: Pa (Alpha), Vu (Beta), Ga (Gamma), Di (Delta), Ke (Epsilon), Zo (Zeta), Ni (Eta). Collectively, these names intentionally incorporate all seven Greek vowels:
πΑ, βΟΥ, γΑ, δΙ, κΕ, ζΩ, νΗ => {Α, Ο, Υ, Ι, Ε, Ω, Η}.
This construction was deliberately engineered, it wasn’t arbitrary nor was it the comical explanation: “Those were just taken from the first syllables of a prayer.”
When fixed melodic formulas, recurring tonal centers, different melodic classes within the same Tone, calendar structure, hymnological function and apparently disconnected liturgical prescriptions are evaluated together rather than studied in isolation, the larger engine emerges.
Several glaring inconsistencies vanish the moment these surviving fragments are placed in their proper hierarchy. Others become identifiable as late conceptual errors. Accumulated over centuries, the tradition added terminology while losing its architecture, producing generations of musicians who graduate without understanding how any of these components relate.
This is the Hidden Architecture MBP restores.
By separating Tone from Mode it becomes possible to describe the actual melodic behavior without multiplying exceptions or inventing arbitrary rules. Formal modal analysis distinguishes structural pitch organization from inherited excuses. Staff notation exposes vertical and horizontal relationships that remain impossible to compare when each repertory is locked inside its own isolated notation.
Restoration
The word restoration in Mastering Byzantine Polyphony has nothing to do with chasing an imagined historical performance practice or recreating ancient acoustics. Some people do that and appear to have great fun doing it, they even have an audience for it. But we aren’t here to play Pirates or Indiana Jones.
Restoration here means recovering the system’s structural coherence. Mastering Byzantine Polyphony reconstructs that underlying architecture, corrects the historical transmission errors, and uses it as the foundation for a unified, scalable musical system. The complete structure is developed in the Mastering Byzantine Polyphony book. MBP’s “revisionism” is older than the tradition that accuses it.