369edo: Difference between revisions

+infobox and improve intro
Theory: expand on 13-limit
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== Theory ==
== Theory ==
369edo tempers out [[2401/2400]] and [[4375/4374]] in the 7-limit, so that it supports the [[ennealimmal]] temperament; in the 11-limit, [[4000/3993]], [[5632/5625]] and [[16384/16335]]. It provides the [[optimal patent val]] for the 11-limit 21&109 temperament, the 65&152 temperament, and the rank-4 temperament tempering out 16384/16335, the semiporwellisma, as well as the no-7 subgroup version of it.  
369 = 9 × 41, and it shares the fifth with [[41edo]]. It has a sharp tendency, with [[harmonic]]s 3 through 11 all tuned sharp. It tempers out [[2401/2400]] and [[4375/4374]] in the 7-limit, so that it supports the [[ennealimmal]] temperament; in the 11-limit, [[4000/3993]], [[5632/5625]] and [[16384/16335]]. It provides the [[optimal patent val]] for the 11-limit 130&239 temperament, the 65&152 temperament, and the rank-4 temperament tempering out 16384/16335, the semiporwellisma, as well as the no-7 subgroup version of it.  


369 factors as 3<sup>2</sup> × 41, with subset edos 3, 9, 41, and 123.  
Extension to the 13-limit is viable by the 369f val, tempering out [[1575/1573]], [[2080/2079]], [[2200/2197]], and 3584/3575. The optimal tuning of this temperament is consistent in the 15-integer-limit.
 
369 has subset edos {{EDOs| 3, 9, 41, and 123 }}.  


=== Prime harmonics ===
=== Prime harmonics ===