Definition of Tetrechord

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Definition of Tetrechord

Tet"ra*chord (?), n. [L. tetrachordon, Gr. &?;, from &?; four-stringed; te`tra- (see Tetra-) + &?; a chord: cf. F. tétrachorde.] (Anc. Mus.) A scale series of four sounds, of which the extremes, or first and last, constituted a fourth. These extremes were immutable; the two middle sounds were changeable.

Tet"ra*chord (?), n. [L. tetrachordon, Gr. &?;, from &?; four-stringed; te`tra- (see Tetra-) + &?; a chord: cf. F. tétrachorde.] (Anc. Mus.) A scale series of four sounds, of which the extremes, or first and last, constituted a fourth. These extremes were immutable; the two middle sounds were changeable.

- Webster's Unabridged Dictionary (1913)

In music a tetrachord is any set of four different pitch classes.

- The Nuttall Encyclopedia

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The correct Spelling of this word is: Tetrachord

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