| 释义 |
heptachord, a. and n. Mus.|ˈhɛptəkɔːd|
[ad. Gr. ἑπτάχορδ-ος seven-stringed, f. ἑπτά seven + χορδή string, chord. Cf. F. heptacorde.]
†A. adj. Seven-stringed. Obs.
1727–41Chambers Cycl. s.v., In the antient poetry, Heptachord verses were those sung or played on seven chords; that is, in seven different notes, or tones; and probably on an instrument with seven strings.
B. n.
a. A musical instrument of seven strings.
b. A series of seven notes, formed of two conjunct tetrachords.
c. The interval of a seventh.
1765Croker, etc. Dict. Arts & Sc., Heptachord,..was applied to the lyre, when it had but seven strings. 1775Ash, Heptachord, a musical instrument of seven strings, a poetical composition played or sung on seven chords or notes. 1774Burney Hist. Mus. I. 35 Forming then the whole system of the octachord, or heptachord. Ibid. 205 If these two strings were tuned fourths to each other, they would furnish that series of sounds which the ancients called a heptachord, consisting of two conjunct tetrachords. 1861T. L. Peacock Gryll Gr. xxii. 197 If..these two heptachords should harmonize into a double octave. |