Clampitt and Noll, Figure 16

Figure 16. Between the neighboring common-origin modes C-Ionian and D-Dorian, minimal rotation of the scale step pattern corresponds to a minimal letter transposition of the folding pattern (top). Between the neighboring common-finalis modes C-Ionian and C-Lydian, a minimal letter transposition in the scale step pattern corresponds to a minimal rotation of the folding pattern (bottom).