Pitch interval

Augmented second on pitch C4 The ordered pitch interval is +3. The unordered pitch interval is simply '3'. Note that the same number of semitones describes a minor third. Playⓘ

In musical set theory, there are four kinds of interval:

  • Ordered pitch interval
  • Unordered pitch interval
  • Ordered pitch-class interval
  • Unordered pitch-class interval