All the following concepts are used in KCM and retain their relatively meaning unchanged from traditional western music theory. KCM can be seen as “defragging” music theory in that the elements needed to explain the theory are fewer and their interconnection stronger.
- Unison and Octave
- Minor Second and Major Seventh
- Major Second and Minor Seventh
- Major Third and Minor Sixth
- Minor Third and Major Sixth
- Perfect Fourth and Perfect Fifth
- Tritone and Tritone
- Major Scale
- Melodic Minor
- Melodic Major
- Harmonic Minor
- Harmonic Major
- Neapolitan Minor
- Neapolitan Major
- Hungarian
- Byzantine
- Enigmatic
- Whole-Tone