tetrachord

Noun

Meaning

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.

Source: Webster's dictionary

Synonyms

Examples

The player could go on up a couple notes (G - A - B), but the next note will be a flatted seventh (C natural in this case), because this note is drawn from the G tetrachord. Source: Internet

He presented his own divisions of the tetrachord and the octave, which he derived with the help of a monochord. Source: Internet

The set of intervals within each tetrachord comprises two tones and a semitone. Source: Internet

The shift from the bass bridge to the treble bridge is required because the bass bridge's fourth string G is the start of the lower tetrachord of the G scale. Source: Internet

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