The Jacobins: Difference between revisions

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=== Pure onzonic ===
=== Pure onzonic ===
Pure onzonic is the temperament that was initially defined as "jacobin" before [[Flora Canou]] pointed out that the name "jacobin temperament" would refer to a rank-5 temperamnet tempering out 6656/6655. Since jacobin comma is the difference between a stack of three 11/8s and 13/10, it was natural to choose 11/8 as the generator for the rank 2 "jacobin temperament". Name "pure onzonic" is thus reserved for the pure 2.5.11.13 subgroup.
Pure onzonic is the temperament that was initially referred to as "jacobin" before it was pointed out that the same name would be reserved for the rank-5 temperamnet tempering out 6656/6655 alone. Since 6656/6655 is the difference between a stack of three 11/8's and 13/10, it is natural to choose a rank-2 temperament that uses 11/8 as the generator to exploit the comma.  


Subgroup: 2.5.11.13
[[Subgroup]]: 2.5.11.13


Comma list: 6656/6655, {{monzo|-119 -46 15 47}}
[[Comma list]]: 6656/6655, {{monzo| -119 -46 15 47 }}


Mapping: [{{val|1 74 3 74}}, {{val|0 -156 1 -153}}]
[[Mapping]]: [{{val| 1 74 3 74 }}, {{val| 0 -156 1 -153 }}]


Optimal tuning (CTE): ~11/8 = 551.370
[[Optimal tuning]] ([[CTE]]): ~11/8 = 551.370


Vals: {{EDOs|37, 1789}}
Vals: {{EDOs| 37, 1789 }}


== Estates general ==
== Estates general ==
Named so because it is defined as the 1789 & 3125 temperament due to 3125 providing optimal patent val for the jacobin comma, 3125 is 5 to the 5th power, and Estates General were called by Louis XVI on 5th May 1789 (05/05). Defined starting with the 2.5.11.13.19 subgroup, upwards to the 2.5.11.13.19.23.29.31 subgroup.
Named so because it is described as the 1789 & 3125 temperament due to 3125 providing the optimal patent val for the jacobin comma, 3125 is 5 to the 5th power, and Estates General were called by Louis XVI on 5th May 1789 (05/05). Defined starting with the 2.5.11.13.19 subgroup, upwards to the 2.5.11.13.19.23.29.31 subgroup.


Subgroup: 2.5.11.13.19
Subgroup: 2.5.11.13.19
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== Sextilimeans ==
== Sextilimeans ==
It's like sextilififths, but the fourth that is divided into 6 is tuned meantone, corresponding to a fifth of 1039\1789, or about 1/4.26-commma meantone.
Sextilimeans is like sextilififths, but the fourth that is divided into 6 in sextilififths is tuned to a meantone fourth in the optimal tuning, or about 1/4.26-commma meantone. It should be noted, however, that this meantone fourth is not ~4/3 despite that the name may suggest so. In fact, the 3rd harmonic is mapped to -482 generator steps. It is described as the 229 & 1789 temperament.  
Defined as the 229 & 1789 temperament.


Subgroup: 2.5.7.11.13
Subgroup: 2.5.7.11.13
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== Double Bastille ==
== Double Bastille ==
Defined as the 1789 & 2814 temperament, and named because 2814 divided in two is 1407, and Bastille storming happened on 14 July 1789. Unfortunately 1407 & 1789 temperament does not temper out the jacobin comma (at least in the patent val), so it's not possible to include it here.
Described as the 1789 & 2814 temperament, and named because 2814 divided in two is 1407, and Bastille storming happened on 14 July 1789. Unfortunately the 1407 & 1789 temperament in the patent val does not temper out the jacobin comma, so it is not included here.


Subgroup: 2.5.7.11.13
Subgroup: 2.5.7.11.13
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Vals: 1789, 2814, ...
Vals: 1789, 2814, ...
[[Category:Commatic realms]]
[[Category:Commatic realms]]
[[Category:Jacobin]]
[[Category:Jacobin]]