Huntmic chords: Difference between revisions
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''Huntmic chords'' are | '''Huntmic chords''' are [[Dyadic chord|essentially tempered chords]] tempered by the huntma, [[640/637]]. | ||
There are three triads, six tetrads and two pentads as 2.5.7.13 [[subgroup]] [[13-odd-limit]] essentially tempered chords. | |||
[[Category: | For triads, there are one palindromic chord and a pair of chords in inverse relationship. The palindromic chord is | ||
[[Category: | * 1-8/7-13/10 chord with steps of 8/7-8/7-20/13. | ||
[[Category: | |||
[[Category: | The inversely related pair of chords is | ||
[[Category: | * 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]] | |||