User:Xenwolf/Interval quartet: Difference between revisions
note about an observation |
the relation between 1, 4, 5, 8 (and 2, 7) are a bit more complicated |
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* d6 ↔ A3 ↔ d3 ↔ A6 | * d6 ↔ A3 ↔ d3 ↔ A6 | ||
* the four [[interseptimal]] regions are the union set of certain interval quartets. | * the four [[interseptimal]] regions are the union set of certain interval quartets. | ||