a. [f. late L. unisonus (see UNISON) + -OUS.]
1. Mus. Of the same pitch for the different voices or instruments; composed, performed, or rendered in unison or in octaves, and not in parts; unisonal.
1781. Warton, Hist. Eng. Poetry, III. 171. These apt notes [to sing the Psalms with] were about forty tunes, of one part only, and in one unisonous key.
1789. Burney, Hist. Mus., III. 389. Nothing now but syllabic and unisonous psalmody was authorised in the Church.
1818. Blackw. Mag., III. 65. The Psalms being set to simple or unisonous melodies, to render them fit for public service.
1867. Contemp. Rev., IV. 190. Their deadness took the form of a drawling unisonous singing of the old tunes.
1894. Times, 11 June, 9/5. The player’s left hand … was audibly less at home than the right in the unisonous finale.
2. Exhibiting agreement, concord, or sameness of character or nature; concordant.
1812. Shelley, Lett. to Miss Hitchener, 29 Jan. Minds unisonous in reason and feeling.
1851. Gallenga, Italy, II. xii. 415. The patriots are uniform, methodical in their transactions, unisonous in their demands.
1858. Gladstone, Homer, I. 34. The voice of the Homeric poems is in this respect … unisonous, and not multiform.
