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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 ...
Tetrachord Note order Step to next note (Number of steps) Note name starting from Dügâh [1] Hicaz pentachord Hicaz tetrachord 1 S (5) Dügâh 2 A (12) Dik Kürdî 3 S (5) Nim Hicâz 4 T (9) (Only for pentachord) Neva - 5 - Hüseynî
The sub-intervals of the tetrachord were unequal, with the largest intervals always at the top, and the smallest at the bottom. The 'characteristic interval' of a tetrachord is its largest one. The Greater Perfect System ( systema teleion meizon ) was composed of four stacked tetrachords called (from lowest to highest) the Hypaton , Meson ...
Interval class table for [0,1,4,6] ic notes of [0,1,4,6] built on E diatonic counterparts 1: E to F: minor 2nd and major 7th 2: A ♭ to B ♭ major 2nd and minor 7th 3: F to A ♭ minor 3rd and major 6th 4: E to G ♯ major 3rd and minor 6th 5: F to B ♭ perfect 4th and perfect 5th 6: E to B ♭ augmented 4th and diminished 5th
Breakdown of the Rast Makam [2] Components Note Name Western Note Steps to following note Cents from Durak note Function Rast pentachord: Rast G T (9) 0 Durak Dügâh A K (8) 203.77 Segâh B: S (5) 384.91 Çargah C T (9) 498.11 Neva - D T (9) 701.89 Güçlü Rast tetrachord (Ascending) Buselik tetrachord (Descending) - Hüseyni/Hisar E K (8) B ...
Set 3-1 has three possible versions: [0 1 1 1 2 T], [0 1 1 T E 1], and [0 T T 1 E 1], where subscripts indicate adjacency intervals. The normal form is the smallest "slice of pie" (shaded) or most compact form; in this case, [0 1 1 1 2 T ].
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).
The double-flat symbol is used for modern notation of the third tone in the tetrachord to follow modern convention of keeping scale notes as a letter sequence, and to remind the reader that the third tone in an enharmonic tetrachord (say F, shown above) was not tuned quite the same as the second note in a diatonic or chromatic scale (the ...