Keemic temperaments: Difference between revisions
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{{Technical data page}} | {{Technical data page}} | ||
This is a collection of [[regular temperament|temperaments]] that [[tempering out|temper out]] the [[keema]] ({{monzo|legend=1| -5 -3 3 1 }}, [[ratio]]: 875/864), with [[S-expression]] S5/S6. Its fundamental equivalence entails that [[6/5]] is sharpened so that it stacks three times to reach [[7/4]], and the interval between 6/5 and [[5/4]] is compressed so that [[7/6]]–6/5–5/4–[[9/7]] are set equidistant from each other. As the | This is a collection of [[rank-2 temperament|linear]] [[regular temperament|temperaments]] that [[tempering out|temper out]] the [[keema]] ({{monzo|legend=1| -5 -3 3 1 }}, [[ratio]]: 875/864), with [[S-expression]] S5/S6. Its fundamental equivalence entails that [[6/5]] is sharpened so that it stacks three times to reach [[7/4]], and the interval between 6/5 and [[5/4]] is compressed so that [[7/6]]–6/5–5/4–[[9/7]] are set equidistant from each other. As the canonical extension of rank-3 [[keemic]] to the [[11-limit]] tempers out the commas [[100/99]] and [[385/384]] (whereby ([[6/5]])<sup>2</sup> is identified with [[16/11]]), this provides a clean way to extend the various keemic temperaments to the 11-limit as well. | ||
Full [[7-limit]] keemic temperaments discussed elsewhere are: | Full [[7-limit]] keemic temperaments discussed elsewhere are: | ||
* [[Flattone]] (+81/80) → [[Meantone family #Flattone|Meantone family]] | |||
* ''[[Mujannabic]]'' (+25/24) → [[Dicot family #Dicot|Dicot family]] | |||
* [[Porcupine]] (+64/63) → [[Porcupine family #Septimal porcupine|Porcupine family]] | |||
* [[Monkey]] (+5120/5103) → [[Tetracot family #Monkey|Tetracot family]] | |||
* [[Magic]] (+225/224) → [[Magic family #Septimal magic|Magic family]] | |||
* [[Keemun]] (+49/48) → [[Kleismic family #Keemun|Kleismic family]] | * [[Keemun]] (+49/48) → [[Kleismic family #Keemun|Kleismic family]] | ||
* ''[[Doublewide]]'' (+50/49) → [[Jubilismic clan #Doublewide|Jubilismic clan]] | * ''[[Doublewide]]'' (+50/49) → [[Jubilismic clan #Doublewide|Jubilismic clan]] | ||
* [[ | * [[Superkleismic]] (+1029/1024) → [[Gamelismic clan #Superkleismic|Gamelismic clan]] | ||
* ''[[Sycamore]]'' (+686/675) → [[Sycamore family #Septimal sycamore|Sycamore family]] | * ''[[Sycamore]]'' (+686/675) → [[Sycamore family #Septimal sycamore|Sycamore family]] | ||
* ''[[Undeka]]'' (+3200/3087) → [[11th-octave temperaments #Undeka|11th-octave temperaments]] | * ''[[Undeka]]'' (+3200/3087) → [[11th-octave temperaments #Undeka|11th-octave temperaments]] | ||
Discussed below are quasitemp, chromo, barbad, hyperkleismic, and sevond. | Discussed below are quasitemp, chromo, barbad, hyperkleismic, and sevond, in the order of increasing [[TE logflat badness]]. | ||
== Quasitemp == | == Quasitemp == | ||
: ''For the 5-limit version, see [[Miscellaneous 5-limit temperaments #Quasitemp]].'' | : ''For the 5-limit version, see [[Miscellaneous 5-limit temperaments #Quasitemp]].'' | ||
Quasitemp tempers out [[2401/2400]] in addition to 875/864 and may be described as the {{nowrap| 37 & 41 }} temperament. It | Quasitemp tempers out [[2401/2400]] in addition to 875/864 and may be described as the {{nowrap| 37 & 41 }} temperament. It is characterized by equating the interval between the pental and septimal thirds ([[36/35]]) with the classical chromatic semitone ([[25/24]]), and by tempering together the septimal dieses of [[49/48]] and [[50/49]]. In that sense, it is opposed to [[orwellismic temperaments]], in particular [[myna]], where the distance between the pental and septimal thirds is the same as the septimal dieses and different from the classical chromatic semitone. | ||
Quasitemp can also be thought of as a [[strong extension]] of the 2.5/3.7/3-subgroup temperament called [[gariberttet]], which is defined by tempering out [[3125/3087]]. In gariberttet, three generators reach [[5/3]] and five reach [[7/3]], so that the generator itself has the interpretation of [[25/21]]. This implies that 3:5:7 and 5:6:7 chords are reached rather quickly. Quasitemp tempering out 875/864 entails that [[8/7]] is found after 9 generators, from which the mappings of 3 and 5 follow. | |||
Note that the generator is given as 25/21's octave complement, 42/25, in the data that follow, since a stack of 14 such generators octave-reduced is the perfect fifth, whence the temperament's [[ploidacot]] is iota-14-cot. This generator is equated to [[22/13]] for the 13-limit extension, tempering out [[275/273]]. | Note that the generator is given as 25/21's octave complement, 42/25, in the data that follow, since a stack of 14 such generators octave-reduced is the perfect fifth, whence the temperament's [[ploidacot]] is iota-14-cot. This generator is equated to [[22/13]] for the 13-limit extension, tempering out [[275/273]]. | ||
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* [[CWE]]: ~2 = 1200.0000{{c}}, ~42/25 = 907.3471{{c}} | * [[CWE]]: ~2 = 1200.0000{{c}}, ~42/25 = 907.3471{{c}} | ||
: error map: {{val| 0.000 +0.905 -5.495 -2.702 }} | : error map: {{val| 0.000 +0.905 -5.495 -2.702 }} | ||
{{Optimal ET sequence|legend=1| 4, …, 37, 41 }} | {{Optimal ET sequence|legend=1| 4, …, 37, 41 }} | ||
| Line 49: | Line 52: | ||
* WE: ~2 = 1199.9585{{c}}, ~42/25 = 907.4221{{c}} | * WE: ~2 = 1199.9585{{c}}, ~42/25 = 907.4221{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.4521{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.4521{{c}} | ||
{{Optimal ET sequence|legend=0| 4, 37, 41, 119 }} | {{Optimal ET sequence|legend=0| 4, 37, 41, 119 }} | ||
| Line 65: | Line 67: | ||
* WE: ~2 = 1199.4376{{c}}, ~22/13 = 907.1175{{c}} | * WE: ~2 = 1199.4376{{c}}, ~22/13 = 907.1175{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~22/13 = 907.5314{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~22/13 = 907.5314{{c}} | ||
{{Optimal ET sequence|legend=0| 4, 37, 41, 78, 119f }} | {{Optimal ET sequence|legend=0| 4, 37, 41, 78, 119f }} | ||
| Line 81: | Line 82: | ||
* WE: ~2 = 1201.2729{{c}}, ~42/25 = 908.1116{{c}} | * WE: ~2 = 1201.2729{{c}}, ~42/25 = 908.1116{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.2109{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.2109{{c}} | ||
{{Optimal ET sequence|legend=0| 41, 127cd, 168cd }} | {{Optimal ET sequence|legend=0| 41, 127cd, 168cd }} | ||
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* WE: ~2 = 1201.4078{{c}}, ~42/25 = 908.1362{{c}} | * WE: ~2 = 1201.4078{{c}}, ~42/25 = 908.1362{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.1370{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~42/25 = 907.1370{{c}} | ||
{{Optimal ET sequence|legend=0| 41, 86ce }} | {{Optimal ET sequence|legend=0| 41, 86ce }} | ||
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* [[CWE]]: ~2 = 1200.0000{{c}}, ~36/35 = 53.9055{{c}} | * [[CWE]]: ~2 = 1200.0000{{c}}, ~36/35 = 53.9055{{c}} | ||
: error map: {{val| 0.000 -1.183 -8.975 +1.474 }} | : error map: {{val| 0.000 -1.183 -8.975 +1.474 }} | ||
{{Optimal ET sequence|legend=1| 22, 45, 67c }} | {{Optimal ET sequence|legend=1| 22, 45, 67c }} | ||
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* [[CWE]]: ~2 = 1200.0000{{c}}, ~75/49 = 731.7183{{c}} | * [[CWE]]: ~2 = 1200.0000{{c}}, ~75/49 = 731.7183{{c}} | ||
: error map: {{val| 0.000 +0.692 -5.694 -2.742 }} | : error map: {{val| 0.000 +0.692 -5.694 -2.742 }} | ||
{{Optimal ET sequence|legend=0| 18, 23d, 41 }} | {{Optimal ET sequence|legend=0| 18, 23d, 41 }} | ||
| Line 157: | Line 154: | ||
* WE: ~2 = 1200.8513{{c}}, ~75/49 = 732.1519{{c}} | * WE: ~2 = 1200.8513{{c}}, ~75/49 = 732.1519{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~75/49 = 731.6740{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~75/49 = 731.6740{{c}} | ||
{{Optimal ET sequence|legend=0| 18e, 23de, 41 }} | {{Optimal ET sequence|legend=0| 18e, 23de, 41 }} | ||
| Line 173: | Line 169: | ||
* WE: ~2 = 1199.7960{{c}}, ~20/13 = 731.6053{{c}} | * WE: ~2 = 1199.7960{{c}}, ~20/13 = 731.6053{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~20/13 = 731.7208{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~20/13 = 731.7208{{c}} | ||
{{Optimal ET sequence|legend=0| 18e, 23de, 41 }} | {{Optimal ET sequence|legend=0| 18e, 23de, 41 }} | ||
| Line 192: | Line 187: | ||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~6/5 = 323.7816{{c}} | * [[CWE]]: ~2 = 1200.0000{{c}}, ~6/5 = 323.7816{{c}} | ||
: error map: {{val| 0.000 +2.332 -5.808 +2.519 }} | : error map: {{val| 0.000 +2.332 -5.808 +2.519 }} | ||
{{Optimal ET sequence|legend=1| 26, 37, 63 }} | {{Optimal ET sequence|legend=1| 26, 37, 63 }} | ||
| Line 208: | Line 202: | ||
* WE: ~2 = 1199.9010{{c}}, ~6/5 = 323.7691{{c}} | * WE: ~2 = 1199.9010{{c}}, ~6/5 = 323.7691{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~6/5 = 323.7931{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~6/5 = 323.7931{{c}} | ||
{{Optimal ET sequence|legend=0| 26, 37, 63 }} | {{Optimal ET sequence|legend=0| 26, 37, 63 }} | ||
| Line 224: | Line 217: | ||
* WE: ~2 = 1200.0524{{c}}, ~6/5 = 323.8039{{c}} | * WE: ~2 = 1200.0524{{c}}, ~6/5 = 323.8039{{c}} | ||
* CWE: ~2 = 1200.0000{{c}}, ~6/5 = 323.7912{{c}} | * CWE: ~2 = 1200.0000{{c}}, ~6/5 = 323.7912{{c}} | ||
{{Optimal ET sequence|legend=0| 26, 37, 63 }} | {{Optimal ET sequence|legend=0| 26, 37, 63 }} | ||
| Line 247: | Line 239: | ||
* [[CWE]]: ~10/9 = 171.4286{{c}}, ~3/2 = 705.6057{{c}} | * [[CWE]]: ~10/9 = 171.4286{{c}}, ~3/2 = 705.6057{{c}} | ||
: error map: {{val| 0.000 +3.651 -3.674 +0.071 }} | : error map: {{val| 0.000 +3.651 -3.674 +0.071 }} | ||
{{Optimal ET sequence|legend=1| 7, …, 56, 63, 119 }} | {{Optimal ET sequence|legend=1| 7, …, 56, 63, 119 }} | ||
| Line 263: | Line 254: | ||
* WE: ~11/10 = 171.3859{{c}}, ~3/2 = 705.3421{{c}} | * WE: ~11/10 = 171.3859{{c}}, ~3/2 = 705.3421{{c}} | ||
* CWE: ~11/10 = 171.4286{{c}}, ~3/2 = 705.4973{{c}} | * CWE: ~11/10 = 171.4286{{c}}, ~3/2 = 705.4973{{c}} | ||
{{Optimal ET sequence|legend=0| 7, 56, 63, 119 }} | {{Optimal ET sequence|legend=0| 7, 56, 63, 119 }} | ||
| Line 279: | Line 269: | ||
* WE: ~11/10 = 171.4163{{c}}, ~3/2 = 705.2930{{c}} | * WE: ~11/10 = 171.4163{{c}}, ~3/2 = 705.2930{{c}} | ||
* CWE: ~11/10 = 171.4286{{c}}, ~3/2 = 705.3402{{c}} | * CWE: ~11/10 = 171.4286{{c}}, ~3/2 = 705.3402{{c}} | ||
{{Optimal ET sequence|legend=0| 7, 56, 63, 119 }} | {{Optimal ET sequence|legend=0| 7, 56, 63, 119 }} | ||
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[[Category:Temperament collections]] | [[Category:Temperament collections]] | ||
[[Category:Keemic temperaments| ]] <!-- main article --> | [[Category:Keemic temperaments| ]] <!-- main article --> | ||
[[Category:Rank 2]] | [[Category:Rank 2]] | ||