Tetrachord: Revision history

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16 May 2026

27 March 2026

  • curprev 00:4800:48, 27 March 2026 Vector talk contribs 4,274 bytes +4,274 Created page with "thumb|376x376px|A map of tetrachord tunings A '''tetrachord''' is some division of the perfect fourth into three parts, creating four distinct notes (hence tetra-). A '''tetrachordal scale''' is a scale constructed by joining two tetrachords with an interval of 9/8 (because 4/3 * 9/8 * 4/3 is an octave), and is resultantly a heptatonic scale (because the unison and octave are equivalent). Often, the additional assumption is made that the two tet..." Tag: Visual edit
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