STEP SPACE
is the category consisting of
heptatonic scales with
M2/m7 and m2/M7 movements
collectively known as steps.
Name: 2-Space
Objects: Heptatonic Scales
Morphisms: Step Intervals
Degree Spelling: 1234567
Step Spelling: WWhWWWh
Major Scale Step Loop
Solid Red is M2; Dotted Red is m2
Major Scale Step Diatonic Center diagram
Major Scale 2×2 diagram
Organized in steps horizontally and vertically
Major Scale 5×2 “Key-Mode” diagram
Organized in jumps horizontally and steps vertically
- Steps constitute two out of the six Characteristic Interval
- Major Scale Tritones in 2-Space responsible for
? Scale Degrees ? and Modes - Strongest at Melody; weakest at Harmony
- Combines with 5-space to form Key-Mode diagrams
- There are few western explorations of this space, mainly in modal jazz; Indian ragas on the other hand make ample use of this space
References within and without KCM


