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In music theory, a tetrachord (Greek: τετράχορδoν; Latin: tetrachordum) is a series of four notes separated by three intervals.In traditional music theory, a tetrachord always spanned the interval of a perfect fourth, a 4:3 frequency proportion (approx. 498 cents)—but in modern use it means any four-note segment of a scale or tone row, not necessarily related to a particular tuning ...
Since the makam is based on 53-TET, it is impossible to directly tie it to 12-TET Western scales. However, using the 48-TET model, while worse than many other models in approximation, [3] allows for such comparisons. [Note 1] The approximation of Rast ascending within 48-TET would be: [Note 2] Major (3, 7) While Rast descending would be ...
Tetrachord Note order Step to next note (Number of steps) Note name starting from Rast [1] Rast pentachord: Rast tetrachord: 1 T (9) Rast 2 K (8) Dügâh 3 S (5) Segâh 4 T (9) (Only for pentachord) Çârgâh - 5 - Neva
Characteristic tetrachord of maqam rast, known as the rast tetrachord, commonly used in descending cadences. Rast Panjgah (or Rast; Persian: راست پنج گاه) is the name of a dastgah (musical mode) in Iranian music and of a maqam in Arabic and related systems of music. Rast is a Persian word meaning "right" or "direct".
The first two of these are the same as the first two tetrachords of the Greater Perfect System, with a third tetrachord placed above the Meson. When all these are considered together, with the Synemmenon tetrachord placed between the Meson and Diezeugmenon tetrachords, they make up the Immutable (or Unmodulating) System (systema
Dominant seventh chord on C: C 7 Play ⓘ.. A tetrad is a set of four notes in music theory.When these four notes form a tertian chord they are more specifically called a seventh chord, after the diatonic interval from the root of the chord to its fourth note (in root position close voicing).
In Turkish classical music, the Uşşak pitch class set is a set of scales that are named after the Uşşak or Hüseynî makams.For Uşşak, there is the Uşşak tetrachord and the Hüseynî pentachord.
The Andalusian cadence (diatonic phrygian tetrachord) is a term adopted from flamenco music for a chord progression comprising four chords descending stepwise: iv–III–II–I progression with respect to the Phrygian mode or i–VII–VI–V progression with respect to the Aeolian mode (minor). [1] It is otherwise known as the minor ...