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This is a work in progress…
Today’s entry modifies the chord progression a bit. I changed a few notes to incorporate an additional pair of triads that can be derived from the 15 limit tonality diamond. What about a minor in the otonality? 10:12:15 Or a major in the utonality? 1/(15/12/10) These complement the supermajor, major, minor, subminor discussed in the last post. Here is a graphical representation of the progression, using the sagittal font:
