Artificial intelligent assistant

octuplet

ˈoctuplet
  [f. as prec., after triplet, etc.]
  A set or combination of eight; in Mus. ‘A group of eight notes which are to be played in the time of six’ (Stainer & Barrett Dict. Mus. Terms 1898).

1852 De Morgan in R. P. Graves Life Sir W. R. Hamilton (1889) III. 338 Then if AB to BC, CD to DE, EF to FA, compounded, also give a ratio of equality, why not say ABCDEF are harmonics? We have then an harmonic quadruplet and sextuplet, and we might have octuplets, &c.

Oxford English Dictionary

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