Undecimal primodality: Difference between revisions

Undecimal has quality super and neutral intervals. The 11:15 at 536.9c is a remarkable superfourth. It's a highly active, interval which has a tendency to bridge almost all the intervals in the family together. The 11:15 superfourth is very tunable by ear and has it's own distinct identity rather than sounding like a flatter version of 8:11. Additionally, it forms a parallel relationship with the 11:20 superminor seventh at 1034.9c. Between the two, a 3:4 relationship exists similar to the familiar perfect fourth relationship between 4 and b7 in 12edo. However, in this family the relationship is shifted much higher to super fourth and superminor seventh. Between this brighter super 4-b7 relationship and the sharper 3-7 relationship, tertian or 12edo-esque structures rendered in Undecimal tend to sound brighter than /13, /17, and /19 color variants. Neutral intervals appear in the first octave as 11:12 and 11:18, 150.6c neutral second and an 852c neutral sixth from 11:18. The 11:19 at 948 cents contributes a unique middle-augmented sixth which tends to sound more like a hypermajor sixth when surrounded by the sharper Undecimal intervals.  

=== Second octave ===

22:44 (2p:4p)