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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 ...
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
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
A guitarist performing a C chord with G bass. In Western music theory, a chord is a group [a] of notes played together for their harmonic consonance or dissonance.The most basic type of chord is a triad, so called because it consists of three distinct notes: the root note along with intervals of a third and a fifth above the root note. [1]
[1] In music, the all-trichord hexachord is a unique hexachord that contains all twelve trichords, or from which all twelve possible trichords may be derived. [2] The prime form of this set class is {012478} [1] and its Forte number is 6-Z17. Its complement is 6-Z43 and they share the interval vector of <3,2,2,3,3,2>.
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 Phrygian progression creates a descending tetrachord bassline: -♭-♭ - . Phrygian half cadence : i-v6-iv6-V in c minor (bassline: c -b ♭ -a ♭ -g) Play ⓘ . In music theory , the descending tetrachord is a series of four notes from a scale , or tetrachord , arranged in order from highest to lowest, or descending order.