In music chromaticism is a compositional technique interspersing the primary diatonic pitches and chords with other pitches of the chromatic scale. These may be unrelated or as secondary pitches.David Cope (1997) describes three forms of chromaticism: modulation, borrowed chords from secondary keys, and chromatic chords such as augmented sixth chords.List of chromatic chords:Dominant seventh chords of subsidiary keys, used to create modulations to those keys (V7-I cadences).Augmented sixth chordsNeapolitan sixth chords as chromatic subdominants.Diminished seventh chords as chromatic VII7Altered chordsExpanded chords(Shir-Cliff, etc., 1965)
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