1547edo: Difference between revisions

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== Theory ==
== Theory ==
1547edo is [[consistent]] to the [[15-odd-limit]] and is excellent in the 7-limit. It [[Tempering out|tempers out]] [[4375/4374]] and it is a member of the [[optimal ET sequence]] for the rank-3 temperament associated with this comma.
1547edo is [[consistent]] to the [[15-odd-limit]] and is excellent in the 7-limit. It [[tempers out]] [[4375/4374]] and it is a member of the [[optimal ET sequence]] for the rank-3 temperament associated with this comma.


In the 5-limit, it supports [[gross]], which is a very high-accuracy temperament. The 118-tone [[maximal evenness]] scale produced by gross is [[concoctic]], since it uses 118\1547 as the generator. In addition, 1547edo tempers out the [[septendecima]] and thus supports the [[chlorine]] temperament in 5-limit and also in the 7-limit. 1547edo tempers out the 5-limit comma {{monzo| 236 -61 -60 }}, thus associating a stack of sixty [[15/8]]'s with [[4/3]], and sixty-one of them make [[5/4]].
In the 5-limit, it supports [[gross]], which is a very high-accuracy temperament. The 118-tone [[maximal evenness]] scale produced by gross is [[concoctic]], since it uses 118\1547 as the generator. In addition, 1547edo tempers out the [[septendecima]] and thus supports the [[chlorine]] temperament in 5-limit and also in the 7-limit. 1547edo tempers out the 5-limit comma {{monzo| 236 -61 -60 }}, thus associating a stack of sixty [[15/8]]'s with [[4/3]], and sixty-one of them make [[5/4]].


In the 7-limit, it provides the [[optimal patent val]] for 7-limit [[brahmagupta]], the 441 & 1106 temperament, and supports an alternative 11-limit extension to it. It also supports [[semidimi]], the 171 & 1376 temperament.  
In the 7-limit, it provides the [[optimal patent val]] for 7-limit [[brahmagupta]], the {{nowrap|441 & 1106}} temperament, and supports an alternative 11-limit extension to it. It also supports [[semidimi]], the {{nowrap|171 & 1376}} temperament.  


In the 11-limit, 1547edo provides the optimal patent val for the [[aluminium]] temperament, which maps 135/128 to 1/13th of the occtave. It also tempers out 117649/117612, and is a tuning for the rank-3 temperament [[heimdall]]. In higher limits, it supports 91th-octave temperament [[protactinium]].
In the 11-limit, 1547edo provides the optimal patent val for the [[aluminium]] temperament, which maps 135/128 to 1/13th of the occtave. It also tempers out 117649/117612, and is a tuning for the rank-3 temperament [[heimdall]]. In higher limits, it supports 91th-octave temperament [[protactinium]].
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| {{monzo| 2452 -1547 }}
| {{monzo| 2452 -1547 }}
| {{mapping| 1547 2542 }}
| {{mapping| 1547 2542 }}
| −0.015
| −0.015
| 0.015
| 0.015
| 1.99
| 1.99
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| {{monzo| -52 -17 34 }}, {{monzo| 40 -56 21 }}
| {{monzo| -52 -17 34 }}, {{monzo| 40 -56 21 }}
| {{mapping| 1547 2542 3592 }}
| {{mapping| 1547 2542 3592 }}
| −0.008
| −0.008
| 0.017
| 0.017
| 2.14
| 2.14
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| 4375/4374, {{monzo| -1 4 11 -11 }}, {{monzo| 46 -14 -3  -6 }}
| 4375/4374, {{monzo| -1 4 11 -11 }}, {{monzo| 46 -14 -3  -6 }}
| {{mapping| 1547 2542 3592 4343 }}
| {{mapping| 1547 2542 3592 4343 }}
| −0.007
| −0.007
| 0.014
| 0.014
| 1.86
| 1.86
Line 53: Line 53:
| 4375/4374, 117649/117612, 234375/234256, 2097152/2096325
| 4375/4374, 117649/117612, 234375/234256, 2097152/2096325
| {{mapping| 1547 2542 3592 4343 5352 }}
| {{mapping| 1547 2542 3592 4343 5352 }}
| −0.017
| −0.017
| 0.024
| 0.024
| 3.10
| 3.10
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| 4096/4095, 4375/4374, 6656/6655, 78125/78078, 85750/85683
| 4096/4095, 4375/4374, 6656/6655, 78125/78078, 85750/85683
| {{mapping| 1547 2542 3592 4343 5352 5725 }}
| {{mapping| 1547 2542 3592 4343 5352 5725 }}
| −0.029
| −0.029
| 0.034
| 0.034
| 4.42
| 4.42
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| [[Protactinium]]
| [[Protactinium]]
|}
|}
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if it is distinct
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct


== Music ==
== Music ==