The Phrygian tetrachord is the 1 b2 b3 4 of a Phrygian scale.
Traditionally, a tetrachord is a series of four tones filling in the interval of a perfect fourth. In modern usage a tetrachord is any four-note segment of a scale or tone row including the augmented fourth (+4). The term tetrachord derives from ancient Greek music theory, it literally means four strings.
C, C7, Cmaj7, C+7
Chords with a minor third in them can use a tetrachord with a minor third in them: Examples: Cm, Cm7, Cmin-maj7, Cm6
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1 Related Lessons
Related Lessons for Tetrachords: Phrygian (1 b2 b3 4)
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