Bayat-e Esfahan: The Avaz That Outgrew Its Name

Of the five Persian avazes, Bayat-e Esfahan (بیات اصفهان) is the outlier. The other four — Abu Ata, Bayat-e Tork, Afshari, and Dashti — all derive from Shur, the most generative dastgah in the system. Bayat-e Esfahan alone derives from Homayun, inheriting its augmented second, its harmonic tension, and a melodic character entirely distinct from the Shur family. It is also, by wide consensus, the most independent of the five — the avaz that comes closest to being a dastgah in all but name.

A question of status

Attested The classification of Bayat-e Esfahan as an avaz rather than a primary dastgah is one of the most persistent questions in Persian musicology. Its melodic identity is sufficiently distinct from Homayun, its radif repertoire sufficiently extensive, and its use as a standalone performance mode sufficiently established that the "avaz" designation can feel like an understatement.

Attested Some theorists have historically classified Bayat-e Esfahan as a branch of both Shur and Homayun, though the standard modern classification places it under Homayun. Farhat himself counted twelve modal systems rather than the conventional seven-plus-five, implicitly granting the avazes a degree of independence. Dariush Talai's influential Radif Analysis lists Bayat-e Esfahan as a separate entry alongside the primary dastgahs, reinforcing its autonomous identity.

Uncertain Whether Bayat-e Esfahan should be formally reclassified as a primary dastgah remains an open question. Its continued classification as an avaz may owe more to the weight of nineteenth-century codification — the organizational choices made by Mirza Abdollah Farahani and transmitted through his students — than to any inherent structural subordination.

Scale structure

Established Bayat-e Esfahan shares the same pitch material as its parent dastgah, Homayun. Transposed to a conventional finalis of D, the scale is approximately:

Established The intervals in Holdrian commas are 4–10–8–9–4–14–4. The hallmark interval is the augmented second between the sixth and seventh degrees — 14 commas, approximately 317 cents — the same dramatic leap that defines Homayun. This interval connects both modes to the broader family of augmented-second modes across the Middle Eastern musical world, including the Turkish Hicaz makam and the Arabic maqam hijaz.

Practice What makes Bayat-e Esfahan a different mode from Homayun is not its pitches but its melodic behavior. Two modes built from identical intervallic material become distinct through differences in emphasis, dwelling, and cadential movement — a principle that runs throughout the dastgah system.

Functional pitches

Attested Persian musicians commonly describe Bayat-e Esfahan as beginning its melodic activity on the fourth degree above Homayun's finalis. The functional pitch roles shift accordingly:

• Shahed ("witness"): approximately the third degree (F, ~317 cents from finalis). This is the pitch of primary melodic emphasis — where the melody characteristically dwells and to which phrases gravitate.
• Ist (secondary resting pitch): the second degree (E koron, ~91 cents). Phrases pause here at intermediate cadential points.
• Forud (cadential descent target): the first degree (D, the finalis). All final cadences resolve downward to this pitch.

Attested The separation of shahed from forud is characteristic of the dastgah system. In Bayat-e Esfahan, the melody dwells on the third degree but ultimately resolves down to the first — creating a sustained tension between where the music lives and where it goes home. This differs from Homayun, where the shahed sits on or near the finalis itself, and the mode's journey is one of ascent toward the augmented second rather than dwelling above the finalis from the outset.

Moteghayyer: the mutable pitch

Established The second degree (E koron) is Bayat-e Esfahan's moteghayyer — the structurally mutable pitch whose intonation shifts depending on melodic direction and gusheh context. This is the same mutable pitch found in Homayun and in Shur: the koron second that may be raised in ascending passages and lowered in descending ones.

Practice In Bayat-e Esfahan, the moteghayyer carries particular weight because it also serves as the ist — the secondary resting pitch. A pitch that both serves as a point of melodic repose and shifts its intonation contextually creates a distinctive instability at the heart of the mode. The listener perceives a resting point that is itself in subtle motion.

Key gusheh

Attested Bayat-e Esfahan contains a comparatively rich collection of gusheh (melodic models), a repertoire depth that reinforces its claim to near-independence. Among the most important:

• Daramad-e avval and Daramad-e dovvom — the first and second entrance sections, establishing the mode's identity and tonal center.
• Jame-daran — a gusheh found across multiple dastgahs, here taking on Bayat-e Esfahan's specific coloring.
• Bayat-e Raje — a distinctive melodic model within the mode's middle register.
• Oshagh — functions as the owj (climax), the point of highest melodic intensity.
• Bayat-e Shiraz — a gusheh whose name evokes another great Persian cultural capital.
• Suz-o Godaz — literally "burning and melting," one of the most emotionally intense gusheh.
• Naghme — a pulsating melodic pattern, typically performed between two or more pitches.
• Masnavi — named for the poetic form, often performed with verse in the masnavi meter.
• Sufi-name (also called Saqi-name) — a gusheh associated with mystical poetry, often the last significant section before the final forud.

Practice This is a substantial repertoire for a mode classified as secondary. By comparison, the avaz Afshari contains only three gusheh in Mirza Abdollah's canonical radif. The extent of Bayat-e Esfahan's gusheh collection is one of the strongest practical arguments for its functional independence.

"Isfahan is half the world"

Established The mode takes its name from Isfahan (اصفهان), the city that served as Iran's capital under the Safavid Empire and remains one of the country's great cultural centers. The Persian proverb Esfahan nesf-e jahan ast — "Isfahan is half the world" — captures the city's historical stature as a center of art, architecture, poetry, and music.

Attested The association between the mode and the city is more than nominal. Nettl documents the existence of distinct regional radif traditions, including an Isfahan school with its own distinguished masters. The musicologist Mohsen Hajarian identifies Hassan Kassai as a representative of this Isfahan tradition, noting that regional radifs can differ substantially in the number and naming of gusheh. The mode Bayat-e Esfahan thus carries a cultural resonance that extends beyond its intervallic structure — it evokes a specific tradition of musical practice rooted in one of Persia's most storied cities.

Both happiness and sadness

Established The music theorist Ruhollah Khaleqi described Bayat-e Esfahan as a mode with "the emotional capacity of both happiness and sadness" — a characterization that distinguishes it from most other Persian modes, which tend to be associated with a single dominant affect. Where Homayun projects intensity and grandeur, and Dashti evokes melancholic solitude, Bayat-e Esfahan contains both poles.

Practice This dual quality contributes to its enduring popularity in Persian classical performance. Bayat-e Esfahan is among the most frequently performed of all twelve modal systems — not despite but because of its emotional range. A performer in Bayat-e Esfahan can move from tenderness to exuberance within a single improvisation, guided by the poetry being sung and the trajectory of the gusheh being explored. It is widely described as the most poetic and romantic of all Persian modes.

Connections to Turkish makam

Established Through its parent Homayun, Bayat-e Esfahan belongs to the augmented-second modal family that includes Turkish Hicaz and Arabic hijaz. The shared structural feature — a semitone, an augmented second, and a semitone — connects these traditions through a common ancestor in medieval Islamic music theory.

Attested The name "Isfahan" itself has deep roots in the theoretical tradition. Medieval theorists of the Systematist school documented an Isfahan tetrachord and related modal entities. In Turkish makam theory, the name survives as a perde (pitch position) and as a historical mode within the broader makam classification. The Persian Bayat-e Esfahan and the Turkish Huseyni family share this medieval heritage, though the two systems diverged considerably: Turkish theory builds modes from abstract interval patterns (cesni) with fixed perde positions, while Persian theory defines modes through the concrete melodic models of the radif with flexible, context-dependent intonation.

Practice A musician trained in one tradition will recognize familiar intervals and melodic shapes in the other, but the performance practice, the improvisational framework, and the relationship between theory and practice differ profoundly. The shared augmented second is a point of connection, not of equivalence.