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Webster 1913 Edition


Tetrachord

Tet′ra-chord

,
Noun.
[L.
tetrachordon
, Gr. [GREEK], from [GREEK] four-stringed;
τέτρα-
(see
Tetra-
) + [GREEK] 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 1828 Edition


Tetrachord

TET'RACHORD

,
Noun.
[Gr. four, and a chord.] In ancient music, a diatessaron; a 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.

Definition 2024


tetrachord

tetrachord

English

Noun

tetrachord (plural tetrachords)

  1. (music) Any set of four different pitch classes.

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