In this example, the inequality signs have been swapped so the lower number is not included in the class interval. This still works, as there are no overlaps and each number lies in a single interval.

Pitch-class sets (such as scales) can be characterized according to the inventory of possible intervals that can be formed by pairing all pitches in the set. The frequency of occurrence of various ...

Over the past Thirty Years, many measures have been proposed to gauge the similarity (or, mutatis mutandis, the difference) in sound of pitch-class sets. We propose here that a very simple measure be ...