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Polyvalence or polyvalency is the use of more than one harmonic function, from the same key, at the same time. [2] Example of C- and F-sharp major chords together in Stravinsky's Petrushka (see: Petrushka chord) Some examples of bitonality superimpose fully harmonized sections of music in different keys.
Bitonal polychord: F major on top of C major. [1] Play ⓘ. In music and music theory, a polychord consists of two or more chords, one on top of the other. [2] [3] [4] In shorthand they are written with the top chord above a line and the bottom chord below, [5] for example F upon C: F / C .
Suzannah Clark, a music professor at Harvard, connected the piece's resurgence in popularity to the harmonic structure, a common pattern similar to the romanesca.The harmonies are complex, but combine into a pattern that is easily understood by the listener with the help of the canon format, a style in which the melody is staggered across multiple voices (as in "Three Blind Mice"). [1]
The key note, or tonic, of a piece of music is called note number one, the first step of (here), the ascending scale iii–IV–V. Chords built on several scale degrees are numbered likewise. Thus the chord progression E minor–F–G can be described as three–four–five, (or iii–IV–V). A chord may be built upon any note of a musical scale.
The concept of harmonic function originates in theories about just intonation.It was realized that three perfect major triads, distant from each other by a perfect fifth, produced the seven degrees of the major scale in one of the possible forms of just intonation: for instance, the triads F–A–C, C–E–G and G–B–D (subdominant, tonic, and dominant respectively) produce the seven ...
The terms quartal and quintal imply a contrast, either compositional or perceptual, with traditional harmonic constructions based on thirds: listeners familiar with music of the common practice period are guided by tonalities constructed with familiar elements: the chords that make up major and minor scales, all in turn built from major and minor thirds.