Gassormic chords: Difference between revisions
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'''Gassormic chords''' are [[Dyadic chord|essentially tempered dyadic chords]] tempered by the gassorma, [[275/273]]. | '''Gassormic chords''' are [[Dyadic chord|essentially tempered dyadic chords]] tempered by the gassorma, [[275/273]]. | ||
Gassormic | Gassormic chords are of [[Dyadic chord/Pattern of essentially tempered chords|pattern 2]] in the [[13-odd-limit]], meaning that there are 6 triads, 15 tetrads and 6 pentads, for a total of 27 distinct chord structures. | ||
For triads, there are | For triads, there are three pairs of chords in inverse relationship. The inversely related pairs of chords are: | ||
* 1-7/5-5/3 | * 1-7/5-5/3 with steps of 7/5-13/11-6/5 and its inverse 1-6/5-10/7 with steps of 6/5-13/11-7/5; | ||
* 1-14/11-5/3 | * 1-14/11-5/3 with steps of 14/11-13/10-6/5 and its inverse 1-6/5-11/7 with steps of 6/5-13/10-14/11; | ||
* 1-7/5-11/6 | * 1-7/5-11/6 with steps of 7/5-13/10-12/11 and its inverse 1-12/11-10/7 with steps of 12/11-13/10-7/5. | ||
For tetrads, there are | For tetrads, there are three palindromic chords and six pairs of chords in inverse relationship. The palindromic chords are: | ||
* 1-6/5-10/7-12/7 chord with steps of 6/5-13/11-6/5-7/6; | * 1-6/5-10/7-12/7 chord with steps of 6/5-13/11-6/5-7/6; | ||
* 1-6/5-13/10-11/7 chord with steps of 6/5-13/12-6/5-14/11; | * 1-6/5-13/10-11/7 chord with steps of 6/5-13/12-6/5-14/11; | ||
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The inversely related pairs of chords are: | The inversely related pairs of chords are: | ||
* 1-13/ | * 1-13/10-11/7-11/6 with steps of 13/10-6/5-7/6-12/11 and its inverse 1-7/6-7/5-11/6 with steps of 7/6-6/5-13/10-12/11; | ||
* 1-6/5-10/7-11/7 with steps of 6/5-13/11-11/10-14/11 and its inverse 1-14/11-7/5-5/3 with steps of 14/11-11/10-13/11-6/5; | |||
* 1-13/10-11/7-13/7 with steps of 13/10-6/5-13/11-14/13 and its inverse 1-13/10-7/5-5/3 with steps of 13/10-14/13-13/11-6/5; | |||
* 1-11/10-6/5-11/7 with steps of 11/10-12/11-13/10-14/11 and its inverse 1-11/10-7/5-11/6 with steps of 11/10-14/11-13/10-12/11; | |||
* 1-6/5-10/7-11/7 | * 1-7/5-20/13-5/3 with steps of 7/5-12/11-13/12-6/5 and its inverse 1-6/5-13/10-10/7 with steps of 6/5-13/12-12/11-7/5; | ||
* 1- | * 1-7/5-5/3-11/6 with steps of 7/5-13/11-11/10-12/11 and its inverse 1-12/11-6/5-10/7 with steps of 12/11-11/10-13/11-7/5. | ||
* 1- | |||
* 1- | |||
* 1-7/5-5/3-11/6 | |||
Equal temperaments with gassormic chords include {{ | For pentads, there are three pairs of chords in inverse relationship: | ||
* 1-11/10-13/10-7/5-11/6 with steps of 11/10-13/11-14/13-13/10-12/11 and its inverse 1-13/10-7/5-5/3-11/6 with steps of 13/10-14/13-13/11-11/10-12/11; | |||
* 1-6/5-13/10-10/7-11/7 with steps of 6/5-13/12-12/11-11/10-14/11 and its inverse 1-13/12-13/10-5/3-11/6 with steps of 13/12-6/5-14/11-11/10-12/11; | |||
* 1-7/6-7/5-5/3-11/6 with steps of 7/6-6/5-13/11-11/10-12/11 and its inverse 1-7/6-14/11-7/5-5/3 with steps of 7/6-12/11-11/10-13/11-6/5. | |||
Equal temperaments with gassormic chords include {{Optimal ET sequence| 10, 15, 22, 26, 29, 31, 41 and 53 }}. | |||
[[Category:13-odd-limit]] | [[Category:13-odd-limit]] | ||
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[[Category:Triads]] | [[Category:Triads]] | ||
[[Category:Tetrads]] | [[Category:Tetrads]] | ||
[[Category:Pentads]] | |||
[[Category:Gassormic]] | [[Category:Gassormic]] |