ABSTRACT
Searching for a diatonic pivot chord is an important first step when analyzing a modulation. A chromatic pivot chord is chromatic in one or both keys, and may function as Predominant or Dominant in the new key. Enharmonic reinterpretation involves resolving a chord as if it were a different chord in order to modulate. The Pitch-Class wheel provides an abstract view of pitch relationships, such as the intervallic content of a chord. The letter names represent pitch classes rather than specific pitches. In a common-tone modulation, a single pitch links two keys. This note is typically shared by a chord in the first key and another chord in the new key, and composers often emphasize this common tone at the point of modulation. Common-tone modulation is most often applied to connect two distantly related keys, especially chromatic-mediant keys.
