Huntmic chords: Difference between revisions

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''Huntmic chords'' are certain 13-limit [[Dyadic chord|essentially tempered chords]] which close at the octave by tempering out the huntma, 640/637. These include tetrads with steps of size (huntmic tempered) 5/4-16/13-8/7-8/7, 16/13-5/4-8/7-8/7 and 5/4-8/7-16/13-8/7, leading to the huntmic temperings of 1-5/4-20/13-7/4, 1-16/13-20/13-7/4 and 1-5/4-10/7-7/4. Note that the last chord can also be tempered by 441/440 to the [[werckismic chords|werckismic tetrad]]. Aside from tetrads, there are huntmic triads, the huntmic tempered versions of 1-16/13-7/5 and 1-8/7-7/5.
'''Huntmic chords''' are [[Dyadic chord|essentially tempered chords]] tempered by the huntma, [[640/637]].


The name huntmic comes from the fact that the [[optimal patent val]] for huntmic temperament is [[205edo]], the basis of the Hunt System of [[Aaron Andrew Hunt]]. Other equal temperaments with huntmic chords include {{EDOs| 22, 53, 68, 80, 94, 111, 121, 137, 205 and 215 }}.
There are three triads, six tetrads and two pentads as 2.5.7.13 [[subgroup]] [[13-odd-limit]] essentially tempered chords.


[[Category:13-limit]]
For triads, there are one palindromic chord and a pair of chords in inverse relationship. The palindromic chord is
[[Category:Chords]]
* 1-8/7-13/10 chord with steps of 8/7-8/7-20/13.
[[Category:Dyadic]]
 
[[Category:Huntma]]
The inversely related pair of chords is
[[Category:Todo:add links]]
* 1-16/13-7/5 with steps of 16/13-8/7-10/7, and its inverse
* 1-8/7-7/5 with steps of 8/7-16/13-10/7.
 
For tetrads, there are two palindromic chords and two pairs of chords in inverse relationship. The palindromic chords are
* 1-16/13-7/5-7/4 chord with steps of 16/13-8/7-5/4-8/7;
* 1-8/7-16/13-7/5 chord with steps of 8/7-14/13-8/7-10/7.
 
The inversely related pairs of chords are
* 1-5/4-10/7-13/8 with steps of 5/4-8/7-8/7-16/13, and its inverse
* 1-8/7-13/10-13/8 with steps of 8/7-8/7-5/4-16/13;
* 1-8/7-13/10-13/7 with steps of 8/7-8/7-10/7-14/13, and its inverse
* 1-8/7-13/10-7/5 with steps of 8/7-8/7-14/13-10/7.
 
They can be extended to pentads:
* 1-8/7-10/7-13/8-7/4 with steps of 8/7-5/4-8/7-14/13-8/7, and its inverse
* 1-8/7-16/13-7/5-7/4 with steps of 8/7-14/13-8/7-5/4-8/7.
 
Equal temperaments with huntmic chords include {{Optimal ET sequence| 22, 53, 68, 80, 94, 111, 121, 137, 205 and 215 }}. The name huntmic comes from the fact that the [[optimal patent val]] for huntmic temperament is [[205edo]], the basis of the [[Hunt System]] of [[Aaron Andrew Hunt]].
 
[[Category:Essentially tempered chords]]
[[Category:Triads]]
[[Category:Tetrads]]
[[Category:Pentads]]
[[Category:Huntmic]]