Fractional-octave temperaments: Difference between revisions
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The most common way to produce a fractional-octave temperament is through an excellent approximation of an interval relative to the size of the wireframe edo. For example, [[compton family]] tempers out the Pythagorean comma and maps 7 steps of 12edo to [[3/2]]. Likewise, a lot of 10th-octave temperaments have a [[13/8]] as 7\10, and 26th-octave temperaments often have a [[7/4]] for 21\26. | The most common way to produce a fractional-octave temperament is through an excellent approximation of an interval relative to the size of the wireframe edo. For example, [[compton family]] tempers out the Pythagorean comma and maps 7 steps of 12edo to [[3/2]]. Likewise, a lot of 10th-octave temperaments have a [[13/8]] as 7\10, and 26th-octave temperaments often have a [[7/4]] for 21\26. | ||
However, an equal division does not have to be harmonically decent to be a wireframe for a fractional-octave temperament. If an equal division has multiples which are high in consistency or are zeta equal divisions or otherwise harmonically strong, it can produce a lot of such | However, an equal division does not have to be harmonically decent to be a wireframe for a fractional-octave temperament. If an equal division has multiples which are high in consistency or are zeta equal divisions or otherwise harmonically strong, it can produce a lot of such temperaments—notable examples being [[20edo]] or [[32edo]]. Likewise, proximity of a step of equal division to a comma is often a source of these temperaments—for example [[56edo]]'s step being directly close to [[81/80]], and 44edo's step being extremely close to [[64/63]]. | ||
=== Disagreement between temperament catalog strategy and fractional-octave practice === | === Disagreement between temperament catalog strategy and fractional-octave practice === | ||
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== Individual pages of temperaments by subtending equal division == | == Individual pages of temperaments by subtending equal division == | ||
=== 2 to | === 2 to 100 === | ||
Many pages are yet to be created. | Many pages are yet to be created. | ||
{| class="wikitable" | {| class="wikitable" | ||
|+ | |+ | ||
| | | | ||
|[[2nd-octave temperaments|2]] | | [[2nd-octave temperaments|2]] | ||
|[[3rd-octave temperaments|3]] | | [[3rd-octave temperaments|3]] | ||
|[[4th-octave temperaments|4]] | | [[4th-octave temperaments|4]] | ||
|[[5th-octave temperaments|5]] | | [[5th-octave temperaments|5]] | ||
|[[6th-octave temperaments|6]] | | [[6th-octave temperaments|6]] | ||
|[[7th-octave temperaments|7]] | | [[7th-octave temperaments|7]] | ||
|[[8th-octave temperaments|8]] | | [[8th-octave temperaments|8]] | ||
|[[9th-octave temperaments|9]] | | [[9th-octave temperaments|9]] | ||
|[[10th-octave temperaments|10]] | | [[10th-octave temperaments|10]] | ||
|- | |- | ||
|[[11th-octave temperaments|11]] | | [[11th-octave temperaments|11]] | ||
|[[12th-octave temperaments|12]] | | [[12th-octave temperaments|12]] | ||
|[[13th-octave temperaments|13]] | | [[13th-octave temperaments|13]] | ||
|[[14th-octave temperaments|14]] | | [[14th-octave temperaments|14]] | ||
|[[15th-octave temperaments|15]] | | [[15th-octave temperaments|15]] | ||
|[[16th-octave temperaments|16]] | | [[16th-octave temperaments|16]] | ||
|[[17th-octave temperaments|17]] | | [[17th-octave temperaments|17]] | ||
|[[18th-octave temperaments|18]] | | [[18th-octave temperaments|18]] | ||
|[[19th-octave temperaments|19]] | | [[19th-octave temperaments|19]] | ||
|[[20th-octave temperaments|20]] | | [[20th-octave temperaments|20]] | ||
|- | |- | ||
|[[21st-octave temperaments|21]] | | [[21st-octave temperaments|21]] | ||
|[[22nd-octave temperaments|22]] | | [[22nd-octave temperaments|22]] | ||
|[[23rd-octave temperaments|23]] | | [[23rd-octave temperaments|23]] | ||
|[[24th-octave temperaments|24]] | | [[24th-octave temperaments|24]] | ||
|[[25th-octave temperaments|25]] | | [[25th-octave temperaments|25]] | ||
|[[26th-octave temperaments|26]] | | [[26th-octave temperaments|26]] | ||
|[[27th-octave temperaments|27]] | | [[27th-octave temperaments|27]] | ||
|[[28th-octave temperaments|28]] | | [[28th-octave temperaments|28]] | ||
|[[29th-octave temperaments|29]] | | [[29th-octave temperaments|29]] | ||
|[[30th-octave temperaments|30]] | | [[30th-octave temperaments|30]] | ||
|- | |- | ||
|[[31st-octave temperaments|31]] | | [[31st-octave temperaments|31]] | ||
|[[32nd-octave temperaments|32]] | | [[32nd-octave temperaments|32]] | ||
|[[33rd-octave temperaments|33]] | | [[33rd-octave temperaments|33]] | ||
|[[34th-octave temperaments|34]] | | [[34th-octave temperaments|34]] | ||
|[[35th-octave temperaments|35]] | | [[35th-octave temperaments|35]] | ||
|[[36th-octave temperaments|36]] | | [[36th-octave temperaments|36]] | ||
|[[37th-octave temperaments|37]] | | [[37th-octave temperaments|37]] | ||
|[[38th-octave temperaments|38]] | | [[38th-octave temperaments|38]] | ||
|[[39th-octave temperaments|39]] | | [[39th-octave temperaments|39]] | ||
|[[40th-octave temperaments|40]] | | [[40th-octave temperaments|40]] | ||
|- | |||
| [[41st-octave temperaments|41]] / [[Countercomp family|C]] | |||
| [[42nd-octave temperaments|42]] | |||
| [[43rd-octave temperaments|43]] | |||
| [[44th-octave temperaments|44]] | |||
| [[45th-octave temperaments|45]] | |||
| [[46th-octave temperaments|46]] | |||
| [[47th-octave temperaments|47]] | |||
| [[48th-octave temperaments|48]] | |||
| [[49th-octave temperaments|49]] | |||
| [[50th-octave temperaments|50]] | |||
|- | |||
| [[51st-octave temperaments|51]] | |||
| [[52nd-octave temperaments|52]] | |||
| [[53rd-octave temperaments|53]] / [[Mercator family|M]] | |||
| [[54th-octave temperaments|54]] | |||
| [[55th-octave temperaments|55]] | |||
| [[56th-octave temperaments|56]] | |||
| [[57th-octave temperaments|57]] | |||
| [[58th-octave temperaments|58]] | |||
| [[59th-octave temperaments|59]] | |||
| [[60th-octave temperaments|60]] | |||
|- | |||
| [[61st-octave temperaments|61]] | |||
| [[62nd-octave temperaments|62]] | |||
| [[63rd-octave temperaments|63]] | |||
| [[64th-octave temperaments|64]] | |||
| [[65th-octave temperaments|65]] | |||
| [[66th-octave temperaments|66]] | |||
| [[67th-octave temperaments|67]] | |||
| [[68th-octave temperaments|68]] | |||
| [[69th-octave temperaments|69]] | |||
| [[70th-octave temperaments|70]] | |||
|- | |||
| [[71st-octave temperaments|71]] | |||
| [[72nd-octave temperaments|72]] | |||
| [[73rd-octave temperaments|73]] | |||
| [[74th-octave temperaments|74]] | |||
| [[75th-octave temperaments|75]] | |||
| [[76th-octave temperaments|76]] | |||
| [[77th-octave temperaments|77]] | |||
| [[78th-octave temperaments|78]] | |||
| [[79th-octave temperaments|79]] | |||
| [[80th-octave temperaments|80]] | |||
|- | |||
| [[81st-octave temperaments|81]] | |||
| [[82nd-octave temperaments|82]] | |||
| [[83rd-octave temperaments|83]] | |||
| [[84th-octave temperaments|84]] | |||
| [[85th-octave temperaments|85]] | |||
| [[86th-octave temperaments|86]] | |||
| [[87th-octave temperaments|87]] | |||
| [[88th-octave temperaments|88]] | |||
| [[89th-octave temperaments|89]] | |||
| [[90th-octave temperaments|90]] | |||
|- | |||
| [[91st-octave temperaments|91]] | |||
| [[92nd-octave temperaments|92]] | |||
| [[93rd-octave temperaments|93]] | |||
| [[94th-octave temperaments|94]] | |||
| [[95th-octave temperaments|95]] | |||
| [[96th-octave temperaments|96]] | |||
| [[97th-octave temperaments|97]] | |||
| [[98th-octave temperaments|98]] | |||
| [[99th-octave temperaments|99]] | |||
| [[100th-octave temperaments|100]] | |||
|} | |} | ||
=== | === 101 and up === | ||
[[ | [[111th-octave temperaments|111]], [[118th-octave temperaments|118]], [[159th-octave temperaments|159]], [[400th-octave temperaments|400]], [[665th-octave temperaments|665]] | ||
C = Countercomp family | |||
M = Mercator family equated with 53rd-octave temperaments until otherwise discovered, also contains 106th-octave temperaments | |||
== Temperaments discussed elsewhere == | == Temperaments discussed elsewhere == | ||
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* 1\2 period temperaments | * 1\2 period temperaments | ||
**[[Diaschismic family|Diaschismic temperaments]] | ** [[Diaschismic family|Diaschismic temperaments]] | ||
** [[Vishnuzmic family|Vishnuzmic temperaments]] | ** [[Vishnuzmic family|Vishnuzmic temperaments]] | ||
** [[Jubilismic clan|Jubilismic temperaments]] | ** [[Jubilismic clan|Jubilismic temperaments]] | ||
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** [[Landscape microtemperaments|Landscape temperaments]] | ** [[Landscape microtemperaments|Landscape temperaments]] | ||
* 1\4 period temperaments | * 1\4 period temperaments | ||
** [[ | ** [[Diminished family|Diminished temperaments]] | ||
** [[Undim family|Undim temperaments]] | ** [[Undim family|Undim temperaments]] | ||
* 1\5 period temperaments | * 1\5 period temperaments | ||
** [[ | ** [[Quintile family|Quintile temperaments]] | ||
** [[Quintosec family|Quintosec temperaments]] | ** [[Quintosec family|Quintosec temperaments]] | ||
** [[Trisedodge family|Trisedodge temperaments]] | ** [[Trisedodge family|Trisedodge temperaments]] | ||
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** [[Stearnsmic clan #Stearnscape|Stearnscape]] | ** [[Stearnsmic clan #Stearnscape|Stearnscape]] | ||
* [[Akjaysma|Akjaysmic temperaments]] (1\7 period) | * [[Akjaysma|Akjaysmic temperaments]] (1\7 period) | ||
**[[Ragismic microtemperaments #Brahmagupta|Brahmagupta]] | ** [[Ragismic microtemperaments #Brahmagupta|Brahmagupta]] | ||
** [[Schismatic family #Septant|Septant]] | ** [[Schismatic family #Septant|Septant]] | ||
** [[ | ** [[Whitewood family #Whitewood|Whitewood temperaments]] | ||
** [[Keemic temperaments #Sevond|Sevond]] | ** [[Keemic temperaments #Sevond|Sevond]] | ||
** [[Mistismic temperaments #Neutron|Neutron]] | ** [[Mistismic temperaments #Neutron|Neutron]] | ||
* [[Ragismic microtemperaments #Octoid|Octoid]], [[Schismatic family #Octant|octant]] (1\8 period) | * [[Ragismic microtemperaments #Octoid|Octoid]], [[Schismatic family #Octant|octant]] (1\8 period) | ||
* [[ | * [[Septiennealimmal clan|Septiennealimmal temperaments]] (1\9 period) | ||
** [[Ragismic microtemperaments #Ennealimmal|Ennealimmal]] | ** [[Ragismic microtemperaments #Ennealimmal|Ennealimmal]] | ||
** [[Augmented family #Niner|Niner]] | ** [[Augmented family #Niner|Niner]] | ||
** [[Marvel temperaments #Enneaportent|Enneaportent]] | ** [[Marvel temperaments #Enneaportent|Enneaportent]] | ||
** [[Kleismic family #Novemkleismic|Novemkleismic]] | ** [[Kleismic family #Novemkleismic|Novemkleismic]] | ||
* [[ | * [[Linus]] temperaments (1\10 period) | ||
** [[Breedsmic temperaments #Decoid|Decoid]] | ** [[Breedsmic temperaments #Decoid|Decoid]] | ||
** [[Ragismic microtemperaments #Deca|Deca]] | ** [[Ragismic microtemperaments #Deca|Deca]] | ||
** [[Cloudy clan #Decic|Decic]] | ** [[Cloudy clan #Decic|Decic]] | ||
** [[Stearnsmic clan #Decistearn|Decistearn]] | ** [[Stearnsmic clan #Decistearn|Decistearn]] | ||
** [[ | ** [[Quintile family #Decile|Decile]] | ||
** [[Vishnuzmic family #Decavish|Decavish]] | ** [[Vishnuzmic family #Decavish|Decavish]] | ||
** [[Metric microtemperaments #Decimetra|Decimetra]] | ** [[Metric microtemperaments #Decimetra|Decimetra]] | ||
* [[Porwell temperaments #Hendecatonic|Hendecatonic | * [[Porwell temperaments #Hendecatonic|Hendecatonic]] (1\11 period) | ||
* [[Compton family|Compton]], [[Very high accuracy temperaments #Atomic|atomic]] (1\12 period) | * [[Compton family|Compton]], [[Very high accuracy temperaments #Atomic|atomic]] (1\12 period) | ||
* [[Orwellismic temperaments #Triskaidekic|Triskaidekic]], [[Octagar temperaments #Tridecatonic|tridecatonic]], [[Ragismic microtemperaments #Trideci|trideci]], [[aluminium]] (1\13 period) | * [[Orwellismic temperaments #Triskaidekic|Triskaidekic]], [[Octagar temperaments #Tridecatonic|tridecatonic]], [[Ragismic microtemperaments #Trideci|trideci]], [[aluminium]] (1\13 period) | ||
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* [[Ragismic microtemperaments #Octoid|Hexadecoid]], [[Jubilismic clan #Sedecic|sedecic]] (1\16 period) | * [[Ragismic microtemperaments #Octoid|Hexadecoid]], [[Jubilismic clan #Sedecic|sedecic]] (1\16 period) | ||
* [[Ragismic microtemperaments #Chlorine|Chlorine]] (1\17 period) | * [[Ragismic microtemperaments #Chlorine|Chlorine]] (1\17 period) | ||
* [[ | * [[Septiennealimmal clan #Ennealimmal|Hemiennealimmal]] (1\18 period) | ||
* [[Ragismic microtemperaments #Enneadecal|Enneadecal]], [[Meantone family #Meanmag|meanmag]] (1\19 period) | * [[Ragismic microtemperaments #Enneadecal|Enneadecal]], [[Meantone family #Meanmag|meanmag]] (1\19 period) | ||
* [[Hemimage temperaments #Degrees|Degrees]] (1\20 period) | * [[Hemimage temperaments #Degrees|Degrees]] (1\20 period) | ||
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* [[Porwell temperaments #Icositritonic|Icositritonic]] (1\23 period) | * [[Porwell temperaments #Icositritonic|Icositritonic]] (1\23 period) | ||
* [[Compton family #Hours|Hours]], [[chromium]] (1\24 period) | * [[Compton family #Hours|Hours]], [[chromium]] (1\24 period) | ||
* [[ | * [[Septiennealimmal clan #Ennealimmal|Trinealimmal]], [[Tritrizo clan #Cobalt|cobalt]] (1\27 period) | ||
* [[Horwell temperaments #Oquatonic|Oquatonic]] (1\28 period) | * [[Horwell temperaments #Oquatonic|Oquatonic]] (1\28 period) | ||
* [[Hemifamity temperaments #Mystery|Mystery]], [[Copper comma|copper]] (1\29 period) | * [[Hemifamity temperaments #Mystery|Mystery]], [[Copper comma|copper]] (1\29 period) | ||
* [[31st-octave temperaments|Birds]] (1\31 period) | * [[31st-octave temperaments|Birds]] (1\31 period) | ||
* [[Compton family # | * [[Compton family #Gamelstearn|Gamelstearn]] (1\36 period) | ||
* [[Ragismic microtemperaments #Enneadecal|Hemienneadecal]], [[semihemienneadecal]] (1\38 period) | * [[Ragismic microtemperaments #Enneadecal|Hemienneadecal]], [[semihemienneadecal]] (1\38 period) | ||
* [[ | * [[Countercomp family|Countercomp temperaments]], [[niobium]] (1\41 period) | ||
* [[Mitonismic temperaments #Meridic|Meridic]] (1\43 period) | * [[Mitonismic temperaments #Meridic|Meridic]] (1\43 period) | ||
* [[Ragismic microtemperaments #Palladium|Palladium]] (1\46 period) | * [[Ragismic microtemperaments #Palladium|Palladium]] (1\46 period) | ||
* [[Compton family #Omicronbeta|Omicronbeta]] (1\72 period) | * [[Compton family #Omicronbeta|Omicronbeta]] (1\72 period) | ||
* [[The Flashmob#Iridium|Iridium]] (1\77 period) | * [[The Flashmob#Iridium|Iridium]] (1\77 period) | ||
* [[Parkleiness temperaments #Octogintic|Octogintic]] | * [[Parkleiness temperaments #Octogintic|Octogintic]] (1\80 period) | ||
* [[Stearnsmic clan #Garistearn|Garistearn]] (1\94 period) | * [[Stearnsmic clan #Garistearn|Garistearn]] (1\94 period) | ||
* [[ | * [[Septiennealimmal clan #Undecentic|Undecentic]] (1\99 period) | ||
* [[ | * [[Septiennealimmal clan #Schisennealimmal|Schisennealimmal]] (1\171 period) | ||
* [[Septiennealimmal clan #Lunennealimmal|Lunennealimmal]] (1\441 period) | |||
* [[ | |||
== See also == | == See also == | ||
* [[Map of rank-2 temperaments]]: Visual map of many of the temperaments listed here. | |||
* [[Map of rank-2 temperaments]] | |||
[[Category:Temperament collections]] | [[Category:Temperament collections]] | ||
[[Category: | [[Category:Pages with mostly numerical content]] |