Archive image from page 184 of The cyclopaedia; or, Universal dictionary. The cyclopaedia; or, Universal dictionary of arts, sciences, and literature cyclopaediaoruni10rees Year: 1819 o ~?$ Example in A minor. â Zr â e- -o- '- -eâ°- I See Thorough-/?, Basso Principals, and Plate II. Out of the fcale of each key, he mould try to form melodies in various meafures ; at firft, totally without ac- companiment, and then from the fundamental and fuppofed bafes to the fcales, Plate VII., III., try to difcovcr what bafe will fuit the paffages in his melodies. Thus far no notice has been taken of dif


Archive image from page 184 of The cyclopaedia; or, Universal dictionary. The cyclopaedia; or, Universal dictionary of arts, sciences, and literature cyclopaediaoruni10rees Year: 1819 o ~?$ Example in A minor. â Zr â e- -o- '- -eâ°- I See Thorough-/?, Basso Principals, and Plate II. Out of the fcale of each key, he mould try to form melodies in various meafures ; at firft, totally without ac- companiment, and then from the fundamental and fuppofed bafes to the fcales, Plate VII., III., try to difcovcr what bafe will fuit the paffages in his melodies. Thus far no notice has been taken of difcords, except fometimes adding the 7th to the common chord, which is the only addition to it, that would not rob the bafe of the tit'e of fundamental. Difcords are the 2d (harp, 4th or tritonus, the 7th and the 9th. But every concord may be made a difcord by the note above it : as the 3d by the 4th, the 4th by the jth, the jth by the 6th, the 6th by the 7th ; and indeed the Sth by the yth. Every interval that exceeds the bounds of the octave, is termed a compound interval, or octave of fome Ample in- terval : as the yth is a recurrence of the' ad, the loth of the 3d, the 1 rth of the 4th, the 12th ef the jth, and the 15th of the octave. The fifth is compofed of two thirds, a major and a minor, or a minor and a major; the 3d of two feconds; the msjor 2d of two Before we enter on the preparation and refolution of dif- cords, it may be neceffary to characterize all the natural in- tervals within the limits of the octave. The fucceffion of unifons (though they cannot be called intervals) is prohibited in counterpoint, unlefs when two treble parts ling or play throughout in unifon, with defign. Thefecond is a difcord, and prepared and refolved in the bafe : it is accompanied by the °. The 3d, an imperfed concord, is wanted in the accom- paniment of every other concord and difcord, except the 2d and . The 4th is a perfect concord, when ufed in the common chord be


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