a. Obs. rare1. [ad. L. symphōniacus or Gr. συμφωνιακός, f. συμφωνία SYMPHONY: see -AC.] Characterized by ‘symphony’ or harmony; in quot., sung by the whole choir together, as opp. to antiphonal. So † Symphoniacal a., harmonious; consonant, accordant; whence † Symphoniacally adv., in a consonant manner.

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1635.  Brathwait, Five Senses, II. v. 136. Yet may wee collect Symphoniacally, though not analogically nor proportionally, by the Excellence of the Creature, the infinite goodnesse of the Creator.

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1650.  Charleton, Paradoxes, Ep. Ded. 10. That the Latin is the most symphoniacall and Concordant Language.

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1665.  E. Maynwaring, Treat. Scurvy, 56. A pitch of energy, symphoniacal with vital principles.

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1776.  Hawkins, Hist. Mus., I. III. iv. 289, note. This distinction between symphoniac and antiphonal psalmody.

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