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The inverse of a given fragment of melody is the fragment turned upside down—so if the original fragment has a rising major third (see interval), the inverted fragment has a falling major (or perhaps minor) third, etc. (Compare, in twelve-tone technique, the inversion of the tone row, which is the so-called prime series turned upside down ...
In music theory, contrapuntal motion is the general movement of two or more melodic lines with respect to each other. [1] In traditional four-part harmony, it is important that lines maintain their independence, an effect which can be achieved by the judicious use of the four types of contrapuntal motion: parallel motion, similar motion, contrary motion, and oblique motion.
The principles of strict counterpoint constitute one of the fundamental components of Schenker's musical theory (see Schenkerian analysis).For Schenker, the study of counterpoint is the study of voice leading; in particular, contrapuntal theory is separate from and independent of harmonic theory, which is concerned with scale-steps (see Harmony).
Fugue – Complex contrapuntal composition in which a single theme or subject is introduced by one part and successively taken up by others. Hymn – A religious song of praise. Invention – Short composition in two-part counterpoint, usually for a keyboard instrument. Lament – Song expressing grief or sorrow.
An interval is inverted by raising or lowering either of the notes by one or more octaves so that the higher note becomes the lower note and vice versa. For example, the inversion of an interval consisting of a C with an E above it (the third measure below) is an E with a C above it – to work this out, the C may be moved up, the E may be lowered, or both may be moved.
Voice exchange is also used in Schenkerian analysis to refer to a pitch class exchange involving two voices across registers, one of which is usually the bass. In this sense, it is a common secondary structural feature found in the music of a wide variety of composers. [12]
Post-tonal music theory is the set of theories put forward to describe music written outside of, or 'after', the tonal system of the common practice period.It revolves around the idea of 'emancipating dissonance', that is, freeing the structure of music from the familiar harmonic patterns that are derived from natural overtones.
Main voice, chief part (i.e. the contrapuntal line of primary importance, in opposition to Nebenstimme) hemiola (English, from Greek) The imposition of a pattern of rhythm or articulation other than that implied by the time signature; specifically, in triple time (for example in 3