octachordn.adj.

Brit.

/ˈɒktəkɔːd/, U.S.

/ˈɑktəˌkɔrd/

Forms: 1700s– octachord, 1800s– octochord.

Origin: Of multiple origins. Partly a borrowing from Latin. Partly a borrowing from Greek. Etymons: Latin octōchordos, octachordum; Greek ὀκτάχορδος.

Etymology: As adjective < classical Latin octōchordos having eight strings or notes (Vitruvius) and its etymon ancient Greek ὀκτάχορδος having eight strings or notes < ὀκτα- octa- comb. form + χορδή chord n.¹; compare French octacorde (1788 designating a lyre in sense ‘having eight strings’, 1803 designating a musical scale in sense ‘having eight notes’), octocorde. As noun < post-classical Latin octachordum, octochordum musical instrument with eight strings (5th–6th cent.) < Hellenistic Greek ὀκτάχορδον series of eight notes, use as noun of neuter singular of ancient Greek ὀκτάχορδος; compare French octacorde eight-stringed lyre (1788), octocorde eight-stringed instrument (1860), scale with eight notes (1908). Compare also Italian ottacordo, adjective and noun (1774 in sense ‘eight-stringed instrument’), Spanish octacordio.

Music.

A. n.

1. A series of eight notes, as the ordinary diatonic scale.

ΘΚΠ

society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [noun] > diatonic scale series

octave1603

septenary1636

octachord1664

resolve1721

1664 J. Wallis Let. 24 May in Corr. (2003) II. 122 This proportion tooke-in the whole compass of the Octachord.

1776 C. Burney Gen. Hist. Music I. 35 Forming then the whole system..of the octachord or heptachord, as I understand it.

1882 Academy 15 Apr. 276 His mode of reasoning is..like the octochord itself, somewhat artificial.

1995 J. Johnson Thes. Abstr. Mus. Properties 196 Octachords are sonorities containing twenty-eight interval-classes.

2. A musical instrument having eight strings.

ΘΚΠ

society > leisure > the arts > music > musical instrument > stringed instruments > [noun] > specific number of strings

decachord?1567

quadrichord1585

decachordon1602

tetrachord1603

pentachord1721

heptachord1765

monochord1771

dichord1776

trichord1776

octachord1786

hendecachord1794

tone-measurer-

1786 T. Busby Compl. Dict. Music Octachord, an instrument, or system, comprising eight sounds, or seven degrees. The Octachord, or lyre, of Pythagoras, comprehended the two disjunct tetrachords expressed by the letters E, F, G, A, B, C, D, E.

1850 in C. Anthon tr. Cicero Somnium Scipionis 312 (note) The ancient musical instrument called octachord, formed of two disjunct tetrachords, or of eight strings, producing the eight tones or sounds of modern music.

1989 Jrnl. Musicol. 7 233 This leads to the issue of the octochord versus the ancient heptachord.

†B. adj.

1. Having eight strings. Obsolete.

ΘΚΠ

society > leisure > the arts > music > musical instrument > stringed instruments > [adjective] > having specific number of strings

decachord1528

three-stringed1605

polychord1636

septichord1721

octachord1761

1761 Philos. Trans. 1760 (Royal Soc.) 51 737 In the time of the octachord lyre.

2. Of or relating to an eight-note scale. Obsolete.

ΘΚΠ

society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [adjective] > other scales

chromatic1603

octachordala1661

octachord1761

hendecachordal1842

tritonous1847

pentatonic1864

pentaphonic1881

melodic1889

heptatonic1890

gapped1910

twelve-tone1926

twelve-note1928

hexatonic1930

octatonic1963

1761 F. H. E. Stiles in Philos. Trans. 1760 (Royal Soc.) 51 771 Denying that the octachord system could have anything to do with his invention.

Derivatives

ˈoctachordal adj. having eight strings or notes.

ΘΚΠ

society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [adjective] > other scales

chromatic1603

octachordala1661

octachord1761

hendecachordal1842

tritonous1847

pentatonic1864

pentaphonic1881

melodic1889

heptatonic1890

gapped1910

twelve-tone1926

twelve-note1928

hexatonic1930

octatonic1963

a1661 R. Bargrave Trav. Diary (1999) 244 I went to receive a most pleasing enterteinment of Musique from m^r William Young..; espetially on an Octo-cordall Viall, of his own Invention, apted for the Lira way of playing.

1850 in C. Anthon tr. Cicero Somnium Scipionis 313 (note) The addition of this omitted sound (attributed to Lycaon or Pythagoras) would give an octachordal lyre, with a complete octave for its scale.

1882 Academy 15 Apr. 276/3 The octochordal scale is of great antiquity.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	octachord
释义	octachordn.adj. Brit. /ˈɒktəkɔːd/, U.S. /ˈɑktəˌkɔrd/ Forms: 1700s– octachord, 1800s– octochord. Origin: Of multiple origins. Partly a borrowing from Latin. Partly a borrowing from Greek. Etymons: Latin octōchordos, octachordum; Greek ὀκτάχορδος. Etymology: As adjective < classical Latin octōchordos having eight strings or notes (Vitruvius) and its etymon ancient Greek ὀκτάχορδος having eight strings or notes < ὀκτα- octa- comb. form + χορδή chord n.¹; compare French octacorde (1788 designating a lyre in sense ‘having eight strings’, 1803 designating a musical scale in sense ‘having eight notes’), octocorde. As noun < post-classical Latin octachordum, octochordum musical instrument with eight strings (5th–6th cent.) < Hellenistic Greek ὀκτάχορδον series of eight notes, use as noun of neuter singular of ancient Greek ὀκτάχορδος; compare French octacorde eight-stringed lyre (1788), octocorde eight-stringed instrument (1860), scale with eight notes (1908). Compare also Italian ottacordo, adjective and noun (1774 in sense ‘eight-stringed instrument’), Spanish octacordio. Music. A. n. 1. A series of eight notes, as the ordinary diatonic scale. ΘΚΠ society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [noun] > diatonic scale series octave1603 septenary1636 octachord1664 resolve1721 1664 J. Wallis Let. 24 May in Corr. (2003) II. 122 This proportion tooke-in the whole compass of the Octachord. 1776 C. Burney Gen. Hist. Music I. 35 Forming then the whole system..of the octachord or heptachord, as I understand it. 1882 Academy 15 Apr. 276 His mode of reasoning is..like the octochord itself, somewhat artificial. 1995 J. Johnson Thes. Abstr. Mus. Properties 196 Octachords are sonorities containing twenty-eight interval-classes. 2. A musical instrument having eight strings. ΘΚΠ society > leisure > the arts > music > musical instrument > stringed instruments > [noun] > specific number of strings decachord?1567 quadrichord1585 decachordon1602 tetrachord1603 pentachord1721 heptachord1765 monochord1771 dichord1776 trichord1776 octachord1786 hendecachord1794 tone-measurer- 1786 T. Busby Compl. Dict. Music Octachord, an instrument, or system, comprising eight sounds, or seven degrees. The Octachord, or lyre, of Pythagoras, comprehended the two disjunct tetrachords expressed by the letters E, F, G, A, B, C, D, E. 1850 in C. Anthon tr. Cicero Somnium Scipionis 312 (note) The ancient musical instrument called octachord, formed of two disjunct tetrachords, or of eight strings, producing the eight tones or sounds of modern music. 1989 Jrnl. Musicol. 7 233 This leads to the issue of the octochord versus the ancient heptachord. †B. adj. 1. Having eight strings. Obsolete. ΘΚΠ society > leisure > the arts > music > musical instrument > stringed instruments > [adjective] > having specific number of strings decachord1528 three-stringed1605 polychord1636 septichord1721 octachord1761 1761 Philos. Trans. 1760 (Royal Soc.) 51 737 In the time of the octachord lyre. 2. Of or relating to an eight-note scale. Obsolete. ΘΚΠ society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [adjective] > other scales chromatic1603 octachordala1661 octachord1761 hendecachordal1842 tritonous1847 pentatonic1864 pentaphonic1881 melodic1889 heptatonic1890 gapped1910 twelve-tone1926 twelve-note1928 hexatonic1930 octatonic1963 1761 F. H. E. Stiles in Philos. Trans. 1760 (Royal Soc.) 51 771 Denying that the octachord system could have anything to do with his invention. Derivatives ˈoctachordal adj. having eight strings or notes. ΘΚΠ society > leisure > the arts > music > musical sound > pitch > system of sounds or intervals > [adjective] > other scales chromatic1603 octachordala1661 octachord1761 hendecachordal1842 tritonous1847 pentatonic1864 pentaphonic1881 melodic1889 heptatonic1890 gapped1910 twelve-tone1926 twelve-note1928 hexatonic1930 octatonic1963 a1661 R. Bargrave Trav. Diary (1999) 244 I went to receive a most pleasing enterteinment of Musique from m^r William Young..; espetially on an Octo-cordall Viall, of his own Invention, apted for the Lira way of playing. 1850 in C. Anthon tr. Cicero Somnium Scipionis 313 (note) The addition of this omitted sound (attributed to Lycaon or Pythagoras) would give an octachordal lyre, with a complete octave for its scale. 1882 Academy 15 Apr. 276/3 The octochordal scale is of great antiquity. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.adj.a1661
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