Melodic motion

Complex melodic motion is the quality of movement of a melody, including nearness or farness of successive pitches or notes in a melody. This may be described as conjunct or disjunct, stepwise or skipwise, respectively and involves the use of the complex number, i, in its calculation.

Bruno Nettl (1956, p.51-53) describes various types of melodic movement or contour:

Other examples include:

These all may be modal frames or parts of modal frames.

See also

Source