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Mixolydian mode


Mixolydian mode may refer to one of three things: the name applied to one of the ancient Greek harmoniai or tonoi, based on a particular octave species or scale; one of the medieval church modes; a modern musical mode or diatonic scale, related to the medieval mode. (The Hypomixolydian mode of medieval music, by contrast, has no modern counterpart.)

The modern diatonic mode is the scale forming the basis of both the rising and falling forms of Harikambhoji in Carnatic music, the classical music form of southern India.

The idea of a Mixolydian mode comes from the music theory of ancient Greece. The invention of the ancient Greek Mixolydian mode was attributed to Sappho, the 7th century B.C. poet and musician. However, what the ancient Greeks thought of as Mixolydian was very different from the modern interpretation of the mode.

In Greek theory, the Mixolydian tonos (the term "mode" is a later Latin term) employs a scale (or "octave species") corresponding to the Greek Hypolydian mode inverted: in its diatonic genus, this is a scale descending from paramese to hypate hypaton: in the diatonic genus, a whole tone (paramese to mese) followed by two conjunct inverted Lydian tetrachords (each being two whole tones followed by a semitone descending). This diatonic genus of the scale is roughly the equivalent of playing all the "white notes" of a piano from B to B, or B | A G F E | (E) D C B, which is also known as modern Locrian mode. (In the chromatic and enharmonic genera, each tetrachord consists of a minor third plus two semitones, and a major third plus two quarter-tones, respectively).


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