The Five Avaz: Satellite Modes of Persian Classical Music

Persian classical music organizes its modal universe into twelve interconnected systems: seven primary dastgahs and five secondary modes called avaz (آواز). This article introduces the five avaz as a group — what they share, how they differ, and why their relationship to their parent dastgahs reveals something fundamental about the structure of Persian music.

What is an avaz?

Established The word avaz (آواز) literally means "song" or "melody" in Persian. In the technical vocabulary of Persian classical music, it denotes a secondary modal system that derives its pitch material from a parent dastgah but possesses its own melodic identity — its own shahed (pitch of emphasis), its own characteristic gusheh (melodic models), and its own expressive character.

Established Farhat describes the avazes as "secondary modal systems" that orbit their parent dastgah. An avaz shares the parent's intervallic material — often the identical scale — but differs in which pitches are emphasized, where the melody characteristically dwells, and which gusheh define its repertoire. Two modes can share every pitch and still be entirely distinct because they differ in melodic behavior.

Attested In performance, an avaz often appears as a digression within a performance of its parent dastgah. A musician performing in Shur might move into Dashti, exploring its characteristic melodic territory, before returning to Shur via a forud (cadential descent). The boundary between parent and satellite is fluid in practice — more a gradient than a wall.

The scholarly debate: secondary or independent?

Attested The status of the avazes is itself a contested question. Farhat treats them as secondary systems, subordinate to and dependent on their parent dastgahs. Nettl, however, takes a different position: he argues that an avaz is not the same as a dastgah and that each has its own special features — a view that grants the avazes more structural independence than Farhat's framing implies.

Attested Some scholars and musicians dispense with the hierarchy entirely, counting twelve equal dastgahs rather than seven-plus-five. In modern Iranian conservatory practice, the avazes are typically taught as distinct modes with explicit reference to their parent relationships, but many performers treat certain avazes — particularly Bayat-e Esfahan — as functionally independent.

Practice For students, the practical implication is this: an avaz is not merely a section of its parent dastgah. Each avaz has its own daraamad (entrance), its own gusheh, its own characteristic phrases, and its own emotional world. Learning Shur does not mean you have learned Dashti, even though they share the same pitches.

The five avazes

Abu Ata

Established Abu Ata (also spelled Abu Ata) is the avaz most closely associated with Iranian devotional and religious contexts. Deeply religious chants such as the azan (call to prayer), Quranic recitation, and the singing of monajat (supplications) are often performed in Abu Ata's characteristic melodic framework, particularly through its Hejaz gusheh, which carries a distinctly Arabic melodic quality.

Attested Abu Ata shares Shur's fundamental tetrachord (D, E koron, F, G in the conventional presentation on D) but distinguishes itself through its melodic contour and emphasis. It makes frequent use of A natural as a melodic focus, and its phrases characteristically explore the area between the third and fifth degrees of the Shur scale. Abu Ata's alternate name, "Dastan-e Arab" (Arabic melody), reflects the perceived connection between its melodic character and Arabic musical traditions.

Attested Notable gusheh within Abu Ata include Hejaz, Sayakhi, Baste-negar, and Chahar-pare, each contributing distinct melodic material and modulatory possibilities.

Bayat-e Tork

Established Bayat-e Tork (also known as Bayat-e Zand, after the Zand tribe of Fars province) takes its name from the Turkic tribes of southern Iran. Many songs of the Qashqai and other Turkic-speaking peoples of the region are composed in this mode, and the name reflects that cultural association.

Attested Among the Shur-derived avazes, Bayat-e Tork creates a warmer, more passionate and urgent character while retaining Shur's essential intervallic identity. It emphasizes different melodic areas than Abu Ata or Dashti, and its ist (secondary resting pitch) falls on a different degree, contributing to its distinct modal personality. Like Abu Ata, certain prayers and devotional poems performed on religious occasions are sung in Bayat-e Tork.

Afshari

Attested Afshari is among the shortest avazes in the radif: in Mirza Abdollah's canonical compilation, it contains only three gusheh. Despite this brevity, Afshari is intensely expressive — its melodic character has been described as deeply contemplative and melancholic.

Attested Phrases in Afshari typically commence on the fourth degree of the scale, incorporating alternations between the neutral and natural forms of certain pitches before descending through the lower register. Its upper range includes a section called Iraq (the "gusheh of Iraq"), which lends Afshari what practitioners describe as a haunting, climactic quality. The contrast between the contemplative lower register and the intensity of the Iraq section gives Afshari a distinctive dramatic arc despite its compact form.

Dashti

Established Dashti means "of the plain" or "of the desert" in Persian, and the name captures this avaz's essential character: a melancholic, rural quality that evokes open landscapes and solitary wandering. Of all the Shur-derived avazes, Dashti is perhaps the most immediately recognizable for its plaintive mood.

Attested Dashti distinguishes itself from the other Shur-derived avazes through its treatment of the fifth degree of the scale, which functions as a variable pitch — sometimes flattened, sometimes natural. This mutability contributes to Dashti's characteristic emotional instability, a quality that practitioners associate with the expression of soulful longing. In performance, skilled musicians often move through Dashti, Afshari, and related sub-modes sequentially, guided by the text of the poetry being sung and the emotional trajectory of the improvisation.

Bayat-e Esfahan

Established Bayat-e Esfahan stands apart from the other four avazes in two respects: it derives from Homayun rather than Shur, and it is widely regarded as the most independent of the five — the avaz that comes closest to functioning as a fully autonomous dastgah.

Established Where Shur's intervallic material is characterized by the neutral second, Homayun adds an augmented second between the sixth and seventh degrees. Bayat-e Esfahan inherits this distinctive interval, giving it a harmonic color entirely absent from the Shur-derived avazes. The music theorist Ruhollah Khaleqi described it as conveying "the emotional capacity of both happiness and sadness" — a poetic and romantic mode of unusual expressive range.

Attested Bayat-e Esfahan contains a comparatively rich set of gusheh: Daramad-e avval and dovvom, Jame-daran, Bayat-e Raje, Oshagh, Bayat-e Shiraz, Suz-o Godaz, Naghme, Masnavi, and Sufi-name, among others. This repertoire depth reinforces its claim to near-independence. Some theorists have historically classified it as a branch of both Shur and Homayun, though the standard modern classification places it under Homayun.

Uncertain The question of whether Bayat-e Esfahan should be reclassified as a primary dastgah remains open. Its melodic richness, its extensive gusheh collection, and its frequent use as a standalone performance mode all argue for independence. Its continued classification as an avaz may owe more to the weight of nineteenth-century codification than to any inherent structural subordination.

Why four of five derive from Shur

Established That four of the five avazes derive from Shur is not accidental — it reflects Shur's position as the most fundamental and generative dastgah in the Persian system. Shur's section within the radif is the largest and most elaborate of any dastgah. Its pitch material, centered on the neutral second (koron), supports an unusually wide range of melodic possibilities — enough to generate four distinct modal personalities, each with its own gusheh, its own emotional register, and its own performance tradition.

Attested The remaining five primary dastgahs (Mahur, Segah, Chahargah, Nava, and Rast-Panjgah) have no associated avazes in the standard classification. This asymmetry says something important about the system: the dastgah-avaz relationship is not a uniform structural principle applied evenly across all modes. It is concentrated where the modal material is richest and most generative. Shur's neutral second and the melodic possibilities it opens are, in this sense, the engine of modal diversity in Persian music.

Historical roots of the avaz concept

Attested The use of the term avaz for secondary or subsidiary modes is old in the Islamic musical tradition. The thirteenth-century theoretician Safi al-Din al-Urmawi mentioned six avazat (Kavash, Kardaniya, Salmak, Nowruz, Maya, and Shahnaz) alongside the primary modes of his system. In this medieval framework, the term was roughly equivalent to the Arabic concept of a "branch mode" — a secondary modal entity derived from a primary one.

Attested The modern classification of seven dastgahs plus five avazes was codified in the nineteenth century, principally through the work of the master musician Mirza Abdollah Farahani (1843-1918) during the Qajar period. As he organized and transmitted the radif to his students, the modal relationships crystallized into the twelve-system framework that remains standard today: when certain avaz modes expanded in scope and repertoire, they came to be called dastgahs; those that remained more compact retained the avaz designation.

Practice The boundary between dastgah and avaz has never been entirely stable. Some gusheh, as Nettl observes, can gain enough prominence within a dastgah to allow extensive variation — potentially evolving into something that could be separated out as a new avaz or even a new dastgah. The twelve-system classification is a snapshot of a living tradition, not a permanent taxonomy.

Where to go from here

Each avaz has its own article on this site that goes deeper into its scale structure, functional pitches, gusheh repertoire, and performance practice. Start with Shur if you have not read it yet — understanding the parent dastgah is essential before exploring its satellites. For the broader organizational framework, see The Dastgah System.