> as lemmas

1721 A. Malcolm Treat. Musick xiii. 434 Discords may transiently pass there without any Offence to the Ear: This the French call Supposition, because the transient Discord supposes a Concord immediately to follow it.]

1728 E. Chambers Cycl. (at cited word) There are several Kinds of Supposition: The first is, when the Parts proceed gradually from Concord to Discord; and Discord to Concord; the intervening Discord serving only as a Transition to the following Concord.

1730 Short Treat. Harmony v. 29 There is a way in Division of making use of Discords, upon the Second accented Part of the Bar, which way is called Supposition.

1737 tr. J.-P. Rameau Treat. Music xxx. 103 Minor Discords by Supposition may be prepared by another common Discord, such as the Seventh.

1796 Encycl. Brit. XVI. 125/1 at Resolution In chords by supposition, one single chord often produces two dissonances; as the seventh and ninth, the ninth and fourth, &c.

1838 G. F. Graham tr. Reicha in Theory & Pract. Mus. Comp. 19/2 The supposition is a measure which..counts as two; 1. as final measure of the first rhythm; and, 2. as initial measure of the following rhythm.

1845 Encycl. Metrop. V. 752 Discords..may be..used without..regular preparation and resolution, though they are then no longer considered in the light of discords but passing or transient notes. [margin] Discords by supposition.

1891 F. R. Ritter tr. J. C. Lobe Catech. Composition xxviii. 78 This supposition of tones is not always to be avoided, is it; in all two-tone chords, for instance?

1974 Jrnl. Musical Theory 18 276 The perfect triad..can be either major or minor, and the dissonant seventh chord..is derived from the triad by the addition of a major or minor third. All other chords are shown to be derived..by inversion or by supposition.

1995 W. Renwick Analyzing Fugue iii. 82 (caption) Basses of chords by supposition.