Fifive family: Difference between revisions
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{{Technical data page}} | |||
The '''fifive family''' of [[regular temperament|temperaments]] [[tempering out|tempers out]] the [[fifive comma]] ({{monzo|legend=1| -1 -14 10 }}, [[ratio]]: 9765625/9565938). | |||
== Fifive == | == Fifive == | ||
The head of this family is fifive, which splits the [[3/2|perfect fifth]] into five [[27/25]]'s, and [[5/4]] is found as seven generators minus a half-octave period. Its [[ploidacot]] is diploid pentacot, and it is a member of the [[diaschismic–gothmic equivalence continuum]] with equivalence number ''n'' = 5/2. | |||
[[ | The name ''fifive'' was given by [[Petr Pařízek]] in 2011 for it splits the perfect fifth in five.<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_101780.html Yahoo! Tuning Group | ''Suggested names for the unclasified temperaments'']</ref> | ||
[[ | [[Subgroup]]: 2.3.5 | ||
[[ | [[Comma list]]: 9765625/9565938 | ||
{{ | {{Mapping|legend=1| 2 2 3 | 0 5 7 }} | ||
: mapping generators: ~78125/50421, ~27/25 | |||
[[Badness]]: | [[Optimal tuning]]s: | ||
* [[WE]]: ~78125/50421 = 600.0168{{c}}, ~27/25 = 140.6276{{c}} | |||
: [[error map]]: {{val| +0.034 +1.217 -1.870 }} | |||
* [[CWE]]: ~78125/50421 = 600.0000{{c}}, ~27/25 = 140.6291{{c}} | |||
: error map: {{val| 0.000 +1.191 -1.910 }} | |||
{{Optimal ET sequence|legend=1| 8, 18bc, 26, 34, 94, 128 }} | |||
[[Badness]] (Sintel): 4.83 | |||
=== Overview to extensions === | |||
The second comma in the comma list defines which 7-limit family member we are looking at. Crepuscular (26 & 34d) adds [[50/49]]. Fifives (26 & 34) adds [[875/864]]. Both use the same generators as fifive. The weak extension fourfives (60 & 68) adds [[245/243]]. All are considered below. | |||
The fifive family boasts a very remarkable extension to the [[2.3.5.13 subgroup]], which has further extensions with higher primes. These are listed at the bottom of this page, in [[#Subgroup extensions]]. | |||
== Crepuscular == | == Crepuscular == | ||
[[Subgroup]]: 2.3.5.7 | |||
Subgroup: 2.3.5.7 | |||
[[Comma list]]: 50/49, 4375/4374 | [[Comma list]]: 50/49, 4375/4374 | ||
{{Mapping|legend=1| 2 2 3 4 | 0 5 7 7 }} | |||
{{ | [[Optimal tuning]]s: | ||
* [[WE]]: ~7/5 = 600.000{{c}}, ~27/25 = 140.349{{c}} | |||
: [[error map]]: {{val| -0.787 -1.458 -5.696 +11.398 }} | |||
* [[CWE]]: ~7/5 = 600.000{{c}}, ~27/25 = 140.349{{c}} | |||
: error map: {{val| 0.000 -0.876 -4.803 +12.685 }} | |||
{{Optimal ET sequence|legend=1| 8d, 18bcd, 26, 34d, 60d }} | |||
[[Badness]] (Sintel): 2.19 | |||
[[Badness]]: | |||
=== 11-limit === | === 11-limit === | ||
| Line 36: | Line 51: | ||
Comma list: 50/49, 99/98, 864/847 | Comma list: 50/49, 99/98, 864/847 | ||
Mapping: | Mapping: {{mapping| 2 2 3 4 6 | 0 5 7 7 4 }} | ||
Optimal tunings: | |||
* WE: ~7/5 = 599.1577{{c}}, ~12/11 = 140.3893{{c}} | |||
* CWE: ~7/5 = 600.0000{{c}}, ~12/11 = 140.3244{{c}} | |||
Optimal | {{Optimal ET sequence|legend=0| 8d, 18bcd, 26, 34d, 60d }} | ||
Badness: | Badness (Sintel): 1.35 | ||
=== 13-limit === | === 13-limit === | ||
| Line 49: | Line 66: | ||
Comma list: 50/49, 78/77, 99/98, 144/143 | Comma list: 50/49, 78/77, 99/98, 144/143 | ||
Mapping: | Mapping: {{mapping| 2 2 3 4 6 6 | 0 5 7 7 4 6 }} | ||
Optimal tunings: | |||
* WE: ~7/5 = 599.2598{{c}}, ~13/12 = 140.3805{{c}} | |||
* CWE: ~7/5 = 600.0000{{c}}, ~13/12 = 140.3237{{c}} | |||
{{Optimal ET sequence|legend=0| 8d, 18bcdf, 26, 34d, 60d }} | |||
Badness (Sintel): 1.01 | |||
=== 17-limit === | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 50/49, 78/77, 85/84, 99/98, 144/143 | |||
Mapping: {{mapping| 2 2 3 4 6 6 7 | 0 5 7 7 4 6 5 }} | |||
Badness: 0. | Optimal tunings: | ||
* WE: ~7/5 = 599.5348{{c}}, ~13/12 = 140.2961{{c}} | |||
* CWE: ~7/5 = 600.0000{{c}}, ~13/12 = 140.2668{{c}} | |||
{{Optimal ET sequence|legend=0| 8d, 18bcdfg, 26, 34d, 60d }} | |||
Badness (Sintel): 0.946 | |||
== Fifives == | == Fifives == | ||
Subgroup: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
[[Comma list]]: 875/864, 83349/81920 | [[Comma list]]: 875/864, 83349/81920 | ||
{{Mapping|legend=1| 2 2 3 7 | 0 5 7 -6 }} | |||
[[ | [[Optimal tuning]]s: | ||
* [[WE]]: ~567/400 = 600.9312{{c}}, ~27/25 = 140.1261{{c}} | |||
: [[error map]]: {{val| +1.862 +0.538 -2.637 -3.064 }} | |||
* [[CWE]]: ~567/400 = 600.0000{{c}}, ~27/25 = 139.9826{{c}} | |||
: error map: {{val| 0.000 -2.042 -6.435 -8.722 }} | |||
{{ | {{Optimal ET sequence|legend=1| 8, 26, 34, 60, 266bcccddd }} | ||
Badness: | [[Badness]] (Sintel): 3.30 | ||
=== 11-limit === | === 11-limit === | ||
| Line 75: | Line 113: | ||
Comma list: 100/99, 385/384, 3969/3872 | Comma list: 100/99, 385/384, 3969/3872 | ||
Mapping: | Mapping: {{mapping| 2 2 3 7 6 | 0 5 7 -6 4 }} | ||
Optimal tunings: | |||
* WE: ~63/44 = 600.5091{{c}}, ~12/11 = 140.0024{{c}} | |||
* CWE: ~63/44 = 600.0000{{c}}, ~12/11 = 139.9267{{c}} | |||
Optimal | {{Optimal ET sequence|legend=0| 8, 26, 34, 60 }} | ||
Badness: | Badness (Sintel): 2.65 | ||
=== 13-limit === | === 13-limit === | ||
| Line 88: | Line 128: | ||
Comma list: 100/99, 105/104, 144/143, 1352/1331 | Comma list: 100/99, 105/104, 144/143, 1352/1331 | ||
Mapping: | Mapping: {{mapping| 2 2 3 7 6 6 | 0 5 7 -6 4 6 }} | ||
Optimal tunings: | |||
* WE: ~55/39 = 600.4600{{c}}, ~12/11 = 139.9737{{c}} | |||
* CWE: ~55/39 = 600.0000{{c}}, ~12/11 = 139.9092{{c}} | |||
{{Optimal ET sequence|legend=0| 8, 26, 34, 60 }} | |||
Badness (Sintel): 1.83 | |||
=== 17-limit === | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 100/99, 105/104, 144/143, 170/169, 221/220 | |||
Mapping: {{mapping| 2 2 3 7 6 6 7 | 0 5 7 -6 4 6 5 }} | |||
Optimal | Optimal tunings: | ||
* WE: ~17/12 = 600.4903{{c}}, ~12/11 = 139.9825{{c}} | |||
* CWE: ~17/12 = 600.0000{{c}}, ~12/11 = 139.9150{{c}} | |||
Badness: | Optimal tuning (POTE): ~17/12 = 600.000{{c}}, ~12/11 = 139.868{{c}} | ||
{{Optimal ET sequence|legend=0| 8, 26, 34, 60 }} | |||
Badness (Sintel): 1.50 | |||
== Fourfives == | == Fourfives == | ||
Subgroup: 2.3.5.7 | {{See also| Sensamagic clan }} | ||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 245/243, 235298/234375 | [[Comma list]]: 245/243, 235298/234375 | ||
{{Mapping|legend=1| 4 4 6 7 | 0 5 7 9 }} | |||
: mapping generators: ~25/21, ~27/25 | |||
[[ | [[Optimal tuning]]s: | ||
* [[WE]]: ~25/21 = 300.0011{{c}}, ~27/25 = 140.7547{{c}} | |||
: [[error map]]: {{val| +0.004 +1.823 -1.024 -2.026 }} | |||
* [[CWE]]: ~25/21 = 300.0000{{c}}, ~27/25 = 140.7549{{c}} | |||
: error map: {{val| 0.000 +1.819 -1.030 -2.032 }} | |||
{{ | {{Optimal ET sequence|legend=1| 8d, …, 60, 68, 128, 196 }} | ||
[[Badness]]: | [[Badness]] (Sintel): 2.89 | ||
=== 11-limit === | === 11-limit === | ||
| Line 114: | Line 180: | ||
Comma list: 245/243, 385/384, 235298/234375 | Comma list: 245/243, 385/384, 235298/234375 | ||
Mapping: | Mapping: {{mapping| 4 4 6 7 19 | 0 5 7 9 -11 }} | ||
Optimal tunings: | |||
* WE: ~25/21 = 299.9901{{c}}, ~27/25 = 140.7659{{c}} | |||
* CWE: ~25/21 = 300.0000{{c}}, ~27/25 = 140.7693{{c}} | |||
Optimal | {{Optimal ET sequence|legend=0| 60, 68, 128, 196 }} | ||
Badness: | Badness (Sintel): 3.97 | ||
=== 13-limit === | ==== 13-limit ==== | ||
Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: 196/195, 245/243, 385/384, 20000/19773 | Comma list: 196/195, 245/243, 385/384, 20000/19773 | ||
Mapping: | Mapping: {{mapping| 4 4 6 7 19 12 | 0 5 7 9 -11 6 }} | ||
Optimal tunings: | |||
* WE: ~25/21 = 299.9488{{c}}, ~13/12 = 140.7359{{c}} | |||
* CWE: ~25/21 = 300.0000{{c}}, ~13/12 = 140.7539{{c}} | |||
{{Optimal ET sequence|legend=0| 60, 68, 128, 196f }} | |||
Badness (Sintel): 2.78 | |||
=== Quadrafives === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 121/120, 245/243, 1375/1372 | |||
Mapping: {{mapping| 4 4 6 7 11 | 0 5 7 9 6 }} | |||
Optimal tunings: | |||
* WE: ~25/21 = 300.1673{{c}}, ~27/25 = 140.7084{{c}} | |||
* CWE: ~25/21 = 300.0000{{c}}, ~27/25 = 140.7353{{c}} | |||
{{Optimal ET sequence|legend=0| 8d, …, 60e, 68, 128e }} | |||
Badness (Sintel): 1.89 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 121/120, 196/195, 245/243, 275/273 | |||
Mapping: {{mapping| 4 4 6 7 11 12 | 0 5 7 9 6 6 }} | |||
Optimal tunings: | |||
* WE: ~25/21 = 300.0500{{c}}, ~13/12 = 140.7516{{c}} | |||
* CWE: ~25/21 = 300.0000{{c}}, ~13/12 = 140.7590{{c}} | |||
{{Optimal ET sequence|legend=0| 8d, …, 60e, 68 }} | |||
Badness (Sintel): 1.49 | |||
==== 17-limit ==== | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 121/120, 154/153, 170/169, 196/195, 245/243 | |||
Mapping: {{mapping| 4 4 6 7 11 12 14 | 0 5 7 9 6 6 5 }} | |||
Optimal tunings: | |||
* WE: ~25/21 = 300.0593{{c}}, ~13/12 = 140.7457{{c}} | |||
* CWE: ~25/21 = 300.0000{{c}}, ~13/12 = 140.7520{{c}} | |||
Optimal tuning (POTE): ~25/21 = 300.000{{c}}, ~13/12 = 140.718{{c}} | |||
{{Optimal ET sequence|legend=0| 8d, …, 60e, 68 }} | |||
Badness (Sintel): 1.26 | |||
== Subgroup extensions == | |||
=== Fifive (2.3.5.13) === | |||
As the [[~]][[27/25]] generator of fifive is so close to [[13/12]], one may temper out their difference, [[325/324]], to obtain this extension in the 2.3.5.13 subgroup. It is also not unreasonable to equate both [[17/12]] and [[24/17]] with the semi-octave period given its overall level of precision, tempering out [[289/288]] and leading to a 2.3.5.13.17-subgroup temperament. | |||
Subgroup: 2.3.5.13 | |||
Comma list: 325/324, 20000/19773 | |||
Mapping: {{mapping| 2 2 3 6 | 0 5 7 6 }} | |||
Optimal tunings: | |||
* WE: ~351/250 = 599.8593{{c}}, ~13/12 = 140.6362{{c}} | |||
* CWE: ~351/250 = 600.0000{{c}}, ~13/12 = 140.6232{{c}} | |||
{{Optimal ET sequence|legend=0| 8, 18bcf, 26, 34, 94, 128 }} | |||
Badness (Sintel): 0.800 | |||
==== 2.3.5.13.17 subgroup ==== | |||
Subgroup: 2.3.5.13.17 | |||
Comma list: 170/169, 289/288, 325/324 | |||
Mapping: {{mapping| 2 2 3 6 7 | 0 5 7 6 5 }} | |||
Optimal tunings: | |||
* WE: ~17/12 = 599.9773{{c}}, ~13/12 = 140.6075{{c}} | |||
* CWE: ~17/12 = 600.0000{{c}}, ~13/12 = 140.6057{{c}} | |||
{{Optimal ET sequence|legend=0| 8, 18bcfg, 26, 34, 94, 128 }} | |||
Badness (Sintel): 0.488 | |||
== References == | |||
[[Category: | [[Category:Fifive family| ]] <!-- main article --> | ||
[[Category:Fifive| ]] <!-- key article --> | |||
[[Category:Temperament families]] | [[Category:Temperament families]] | ||
[[Category: | [[Category:Catalogs of rank-2 temperaments]] | ||