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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 ...
Lower tetrachord Upper tetrachord Use of key signature usual or unusual 15 equal temperament: 15-tet scale on C. Play ⓘ — — — 15 — — — 16 equal temperament: 16-tet scale on C. Play ⓘ — — — 16 — — 17 equal temperament: 17-tet scale on C. Play ⓘ — — — 17 — — 19 equal temperament: 19-tet scale on C. Play ...
Bayati (بياتي) tetrachord, starting on D Hijaz (حجاز) tetrachord, starting on D Kurd (كرد) tetrachord, starting on D Nahawand (نهاوند) tetrachord, starting on C Nikriz (نكريز) pentachord, starting on C Rast (راست) tetrachord, starting on C Saba (صبا) tetrachord, starting on D Sikah (سيكاه) trichord, starting on E
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
The notation "C" is standard modern notation for the pitch of note C when flattened by a quarter tone. [ a ] The double-flats ( ) are used merely to adhere to the modern convention of that all standard pitches in an octave are assigned a distinct, sequential alphabetic letter.
Tetrachord Note order Step to next note (Number of steps) Note name starting from Buselik [1] Buselik pentachord: Buselik tetrachord (starting from Buselik) 1 T (9) Buselik 2 B (4) Hicaz 3 T (9) Neva 4 T (9) Hüseynî - 5 - Mahur
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A sequence of successive natural notes starting from C is an example of major scale, ... [G–A–B–C] each tetrachord being formed of two tones and a semitone, T ...