Porcupine family: Difference between revisions
+cat |
m Cleanup (1/3) |
||
| Line 1: | Line 1: | ||
{{interwiki | |||
| de = Porcupine | |||
The 5-limit parent comma for the porcupine family is [[250/243]], the maximal diesis or porcupine comma. Its [[monzo]] is {{monzo| 1 -5 3 }}, and flipping that yields | | en = Porcupine family | ||
| es = | |||
| ja = | |||
}} | |||
The 5-limit parent comma for the '''porcupine family''' is [[250/243]], the maximal diesis or porcupine comma. Its [[monzo]] is {{monzo| 1 -5 3 }}, and flipping that yields {{multival| 3 5 1 }} for the [[wedgie]]. This tells us the [[generator]] is a minor whole tone, the [[10/9]] interval, and that three of these add up to a fourth, with two more giving the minor sixth. In fact, (10/9)<sup>3</sup> = 4/3 × 250/243, and (10/9)<sup>5</sup> = 8/5 × (250/243)<sup>2</sup>. [[22edo|3\22]] is a very recommendable generator, and MOS of 7, 8 and 15 notes make for some nice scale possibilities. | |||
= Porcupine = | |||
[[Comma list]]: 250/243 | |||
[[Mapping]]: [<1 2 3|, <0 -3 -5|] | |||
[[ | [[POTE generator]]: ~27/25 = 163.950 | ||
[[Tuning ranges]]: | |||
* valid range: [150.000, 171.429] (1\8 to 1\7) | |||
* nice range: [157.821, 166.015] | |||
* strict range: [157.821, 166.015] | |||
{{Val list|legend=1| 7, 15, 22, 95c, 117bc, 139bc, 161bc, 183bc }} | |||
Badness: 0.0308 | [[Badness]]: 0.0308 | ||
== | == Extensions == | ||
The second comma of the [[Normal lists|normal comma list]] defines which [[7-limit]] family member we are looking at. That means [[64/63]], the | The second comma of the [[Normal lists #Normal interval list|normal comma list]] defines which [[7-limit]] family member we are looking at. That means | ||
* [[64/63]], the archytas comma, for [[#Septimal porcupine|septimal porcupine]], | |||
* [[36/35]], the septimal quarter tone, for [[#Hystrix|hystrix]], | |||
* [[50/49]], the jubilisma, for [[#Hedgehog|hedgehog]], and | |||
* [[49/48]], the slendro diesis, for [[#Nautilus|nautilus]]. | |||
= | = Septimal porcupine = | ||
{{main| Porcupine }} | {{main| Porcupine }} | ||
Porcupine | Porcupine uses six of its minor tone generator steps to get to [[7/4]]. For this to work you need a small minor tone such as [[22edo]] provides, and once again 3\22 is a good tuning choice, though we might pick in preference 8\59, 11\81, or 19\140 for our generator. | ||
[[Comma list]]: 64/63, 250/243 | |||
[[Mapping]]: [<1 2 3 2|, <0 -3 -5 6|] | |||
{{Multival|legend=1| 3 5 -6 1 -18 -28 }} | |||
[[POTE generator]]: ~10/9 = 162.880 | [[POTE generator]]: ~10/9 = 162.880 | ||
7- and 9-limit | [[Minimax tuning]]: | ||
* [[7-odd-limit|7-]] and [[9-odd-limit]] eigenmonzo: 9/7 | |||
[[Tuning ranges]]: | |||
* valid range: [160.000, 163.636] (2\15 to 3\22) | |||
* nice range: [157.821, 166.015] | |||
* strict range: [160.000, 163.636] | |||
{{Val list|legend=1| 7, 15, 22, 59, 81bd, 140bbd }} | |||
Badness: 0.0411 | [[Badness]]: 0.0411 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 55/54, 64/63, 100/99 | |||
Mapping: [<1 2 3 2 4|, <0 -3 -5 6 -4|] | |||
POTE generator: ~10 | POTE generator: ~11/10 = 162.747 | ||
11-limit | Minimax tuning: | ||
* 11-odd-limit eigenmonzo: 9/7 | |||
Tuning ranges: | |||
* valid range: [160.000, 163.636] (2\15 to 3\22) | |||
* nice range: [150.637, 182.404] | |||
* strict range: [160.000, 163.636] | |||
Vals: {{val list| 7, 15, 22, 37, 59 }} | |||
Badness: 0.0217 | Badness: 0.0217 | ||
=== 13-limit === | === 13-limit === | ||
Comma list: 40/39, 55/54, 64/63, 66/65 | |||
Mapping: [<1 2 3 2 4 4|, <0 -3 -5 6 -4 -2|] | |||
POTE generator: ~10/9 = 162.708 | POTE generator: ~10/9 = 162.708 | ||
13- and 15-limit | Minimax tuning: | ||
* 13- and 15-odd-limit eigenmonzo: 11/8 | |||
Tuning ranges: | |||
* valid range: [160.000, 163.636] (15 to 22f) | |||
* nice range: [138.573, 182.404] | |||
* strict range: [160.000, 163.636] | |||
Vals: {{val list| 7, 15, 22f, 37f }} | |||
Badness: 0.0213 | Badness: 0.0213 | ||
| Line 84: | Line 97: | ||
{{see also| The Biosphere }} | {{see also| The Biosphere }} | ||
Comma list: 55/54, 64/63, 91/90, 100/99 | |||
Mapping: [<1 2 3 2 4 6|, <0 -3 -5 6 -4 -17|] | |||
POTE generator: ~10/9 = 162.277 | POTE generator: ~10/9 = 162.277 | ||
13- and 15-limit | Minimax tuning: | ||
* 13- and 15-odd-limit eigenmonzo: 13/11 | |||
Tuning ranges: | |||
* valid range: [160.000, 162.162] (15 to 37) | |||
* nice range: [150.637, 182.404] | |||
* strict range: [160.000, 162.162] | |||
Vals: {{val list| 15, 22, 37, 59, 96b }} | |||
Badness: 0.0253 | Badness: 0.0253 | ||
=== Pourcup === | === Pourcup === | ||
Comma list: 55/54, 64/63, 100/99, 196/195 | |||
Mapping: [<1 2 3 2 4 1|, <0 -3 -5 6 -4 20|] | |||
POTE generator: ~10/9 = 162.482 | POTE generator: ~10/9 = 162.482 | ||
13- and 15-limit | Minimax tuning: | ||
* 13- and 15-odd-limit eigenmonzo: 13/7 | |||
Vals: {{val list| 15f, 22f, 37 }} | |||
Badness: 0.0351 | Badness: 0.0351 | ||
=== Porkpie === | === Porkpie === | ||
Comma list: 55/54, 64/63, 65/63, 100/99 | |||
Mapping: [<1 2 3 2 4 3|, <0 -3 -5 6 -4 5|] | |||
POTE generator: ~10/9 = 163.688 | POTE generator: ~10/9 = 163.688 | ||
13- and 15-limit | Minimax tuning: | ||
* 13- and 15-odd-limit eigenmonzo: 9/7 | |||
Vals: {{val list| 7, 15f, 22 }} | |||
Badness: 0.0260 | Badness: 0.0260 | ||
| Line 131: | Line 146: | ||
Hystrix, with wedgie <<3 5 1 1 -7 -12||, provides a less complex avenue to the 7-limit. Unfortunately in temperaments as in life you get what you pay for, and hystrix, for which a generator of 2\15 or 9\68 can be used, is a temperament for the adventurous souls who have probably already tried [[15edo]]. They can try the even sharper fifth of hystrix in [[68edo]] and see how that suits. | Hystrix, with wedgie <<3 5 1 1 -7 -12||, provides a less complex avenue to the 7-limit. Unfortunately in temperaments as in life you get what you pay for, and hystrix, for which a generator of 2\15 or 9\68 can be used, is a temperament for the adventurous souls who have probably already tried [[15edo]]. They can try the even sharper fifth of hystrix in [[68edo]] and see how that suits. | ||
[[Comma list]]: 36/35, 160/147 | |||
[[Mapping]]: [<1 2 3 3|, <0 -3 -5 -1|] | |||
[[POTE generator]]: ~8/7 = 158.868 | [[POTE generator]]: ~8/7 = 158.868 | ||
7- and 9-limit | [[Minimax tuning]]: | ||
* [[7-odd-limit|7-]] and [[9-odd-limit]] eigenmonzo: 5/4 | |||
{{Val list|legend=1| 7, 8d, 15d }} | |||
[[Badness]]: 0.0449 | |||
== 11-limit == | |||
Comma list: 22/21, 36/35, 80/77 | |||
Mapping: [<1 2 3 3 4|, <0 -3 -5 -1 -4|] | |||
POTE generator: ~8/7 = 158.750 | POTE generator: ~8/7 = 158.750 | ||
Vals: {{val list| 7, 8d, 15d }} | |||
Badness: 0.0268 | Badness: 0.0268 | ||
= Porky = | = Porky = | ||
[[Comma list]]: 225/224, 250/243 | |||
[[Mapping]]: [<1 2 3 5|, <0 -3 -5 -16|] | |||
Wedgie: <<3 5 16 1 17 23|| | |||
[[POTE generator]]: ~10/9 = 164.412 | |||
[[Minimax tuning]]: | |||
* [[7-odd-limit|7-]] and [[9-odd-limit]] eigenmonzo: 7/5 | |||
{{Val list|legend=1| 7d, 15d, 22, 29, 51, 73c }} | |||
Badness: 0.0544 | [[Badness]]: 0.0544 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 55/54, 100/99, 225/224 | |||
Mapping: [<1 2 3 5 4|, <0 -3 -5 -16 -4|] | |||
POTE generator: ~10/9 = 164.552 | POTE generator: ~10/9 = 164.552 | ||
11-limit | Minimax tuning: | ||
* 11-odd-limit eigenmonzo: 7/5 | |||
Vals: {{val list| 7d, 15d, 22, 29, 51, 73ce }} | |||
Badness: 0.0273 | Badness: 0.0273 | ||
== 13-limit == | == 13-limit == | ||
Comma list: 55/54, 65/64, 91/90, 100/99 | |||
Mapping: [<1 2 3 5 4 3|, <0 -3 -5 -16 -4 5|] | |||
POTE generator: ~10/9 = 164.953 | POTE generator: ~10/9 = 164.953 | ||
Vals: {{val list| 7d, 22, 29, 51f, 80cdeff }} | |||
Badness: 0.0265 | Badness: 0.0265 | ||
= Coendou = | = Coendou = | ||
[[Comma list]]: 250/243, 525/512 | |||
[[Mapping]]: [<1 2 3 1|, <0 -3 -5 13|] | |||
Wedgie: <<3 5 -13 1 -29 -44|| | |||
[[POTE generator]]: ~10/9 = 166.041 | |||
[[Minimax tuning]]: | |||
* [[7-odd-limit|7-]] and [[9-odd-limit]] eigenmonzo: 3/2 | |||
{{Val list|legend=1| 7, 29, 65c, 94cd }} | |||
Badness: 0.1183 | [[Badness]]: 0.1183 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 55/54, 100/99, 525/512 | |||
Mapping: [<1 2 3 1 4|, <0 -3 -5 13 -4|] | |||
POTE generator: ~10/9 = 165.981 | POTE generator: ~10/9 = 165.981 | ||
11-limit | Minimax tuning: | ||
* 11-odd-limit eigenmonzo: 3/2 | |||
Vals: {{val list| 7, 29, 65ce, 94cde }} | |||
Badness: 0.0497 | Badness: 0.0497 | ||
== 13-limit == | == 13-limit == | ||
Comma list: 55/54, 65/64, 100/99, 105/104 | |||
Mapping: [<1 2 3 1 4 3|, <0 -3 -5 13 -4 5|] | |||
POTE generator: ~10/9 = 165.974 | POTE generator: ~10/9 = 165.974 | ||
13- and 15-limit | Minimax tuning: | ||
* 13- and 15-odd-limit eigenmonzo: 3/2 | |||
Vals: {{val list| 7, 29, 65cef, 94cdef }} | |||
Badness: 0.0302 | Badness: 0.0302 | ||
| Line 237: | Line 258: | ||
Hedgehog, with wedgie <<6 10 10 2 -1 -5||, has a period 1/2 octave and a generator which can be taken to be 9/7 instead of 10/9. It also tempers out 245/243, the sensamagic comma. 22edo provides the obvious tuning, but if you are looking for an alternative, you could try the <146 232 338 411| val with generator 10\73, or you could try 164 cents if you are fond of round numbers. The 14 note MOS gives scope for harmony while stopping well short of 22. | Hedgehog, with wedgie <<6 10 10 2 -1 -5||, has a period 1/2 octave and a generator which can be taken to be 9/7 instead of 10/9. It also tempers out 245/243, the sensamagic comma. 22edo provides the obvious tuning, but if you are looking for an alternative, you could try the <146 232 338 411| val with generator 10\73, or you could try 164 cents if you are fond of round numbers. The 14 note MOS gives scope for harmony while stopping well short of 22. | ||
[[Comma list]]: 50/49, 245/243 | |||
[[ | [[Mapping]]: [<2 1 1 2|, <0 3 5 5|] | ||
Wedgie: <<6 10 10 2 -1 -5|| | |||
[[POTE generator]]: ~9/7 = 435.648 | |||
{{Val list|legend=1| 8d, 14c, 22, 146bccdd }} | |||
Badness: 0.0440 | [[Badness]]: 0.0440 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 50/49, 55/54, 99/98 | |||
Mapping: [<2 1 1 2 4|, <0 3 5 5 4|] | |||
POTE generator: ~9/7 = 435.386 | POTE generator: ~9/7 = 435.386 | ||
Vals: {{val list| 14c, 22, 58ce, 80ce, 102cde }} | |||
Badness: 0.0231 | Badness: 0.0231 | ||
=== 13-limit === | === 13-limit === | ||
Comma list: 50/49, 55/54, 65/63, 99/98 | |||
Mapping: [<2 1 1 2 4 3|, <0 3 5 5 4 6|] | |||
POTE generator: ~9/7 = 435.861 | POTE generator: ~9/7 = 435.861 | ||
Vals: {{val list| 14cf, 22 }} | |||
Badness: 0.0215 | Badness: 0.0215 | ||
=== Urchin === | === Urchin === | ||
Comma list: 40/39, 50/49, 55/54, 66/65 | |||
Mapping: [<2 1 1 2 4 6|, <0 3 5 5 4 2|] | |||
POTE generator: ~9/7 = 437.078 | POTE generator: ~9/7 = 437.078 | ||
Vals: {{val list| 14c, 22f }} | |||
Badness: 0.0252 | Badness: 0.0252 | ||
== Hedgepig == | == Hedgepig == | ||
Comma list: 50/49, 245/243, 385/384 | |||
Mapping: [<2 1 1 2 12|, <0 3 5 5 -7|] | |||
POTE generator: ~9/7 = 435.425 | POTE generator: ~9/7 = 435.425 | ||
Vals: {{val list| 22, 80c, 102cd, 124cd }} | |||
Badness: 0.0684 | Badness: 0.0684 | ||
; Music | |||
[http://micro.soonlabel.com/22-ET/20120207-phobos-light-hedgehog14.mp3 Phobos Light] by Chris Vaisvil in Hedgehog[14] [[hedgehog14|tuned]] to 22edo. | [http://micro.soonlabel.com/22-ET/20120207-phobos-light-hedgehog14.mp3 Phobos Light] by [[Chris Vaisvil]] in Hedgehog[14] [[hedgehog14|tuned]] to 22edo. | ||
= Nautilus = | = Nautilus = | ||
[[Comma list]]: 49/48, 250/243 | |||
[[Mapping]]: [<1 2 3 3|, <0 -6 -10 -3|] | |||
Wedgie: <<6 10 3 2 -12 -21|| | |||
[[POTE generator]]: ~21/20 = 82.505 | |||
{{Val list|legend=1| 15, 29, 43cd, 44d, 59d, 73cd, 102cd }} | |||
== 11-limit == | == 11-limit == | ||
Comma list: 49/48, 55/54, 245/242 | |||
Mapping: [<1 2 3 3 4|, <0 -6 -10 -3 -8|] | |||
POTE generator: ~21/20 = 82.504 | POTE generator: ~21/20 = 82.504 | ||
Vals: {{val list| 14c, 15, 29, 43cde, 44d, 59d, 73cde, 102cde }} | |||
=== 13-limit === | |||
Comma list: 49/48, 55/54, 91/90, 100/99 | |||
Mapping: [<1 2 3 3 4 5|, <0 -6 -10 -3 -8 -19|] | |||
POTE generator: ~21/20 = 62.530 | POTE generator: ~21/20 = 62.530 | ||
Vals: {{val list| 15f, 29, 43cde, 44d, 59df, 73cde, 102cde }} | |||
Badness: 0.0223 | Badness: 0.0223 | ||
=== Belauensis === | === Belauensis === | ||
Comma list: 40/39, 49/48, 55/54, 66/65 | |||
Mapping: [<1 2 3 3 4 4|, <0 -6 -10 -3 -8 -4|] | |||
POTE generator: ~21/20 = ~14/13 = 81.759 | POTE generator: ~21/20 = ~14/13 = 81.759 | ||
Vals: {{val list| 14c, 15, 29f, 44df }} | |||
Badness: 0.0298 | Badness: 0.0298 | ||
[http://micro.soonlabel.com/gene_ward_smith/Others/Igs/NautilusReverie.mp3 Nautilus Reverie] by [[ | ; Music | ||
[http://micro.soonlabel.com/gene_ward_smith/Others/Igs/NautilusReverie.mp3 Nautilus Reverie] by [[Igliashon Jones|Igliashon Calvin Jones-Coolidge]] | |||
= Ammonite = | = Ammonite = | ||
Comma list: 250/243, 686/675 | |||
Mapping: [<1 5 8 10|, <0 -9 -15 -19|] | |||
Wedgie: <<9 15 19 3 5 2|| | |||
POTE generator: ~9/7 = 454.448 | |||
{{Val list|legend=1| 29, 37, 66 }} | |||
Badness: 0.1077 | Badness: 0.1077 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 55/54, 100/99, 686/675 | |||
Mapping: [<1 5 8 10 8|, <0 -9 -15 -19 -12|] | |||
POTE generator: ~9/7 = 454.512 | POTE generator: ~9/7 = 454.512 | ||
Vals: {{val list| 29, 37, 66 }} | |||
Badness: 0.0457 | Badness: 0.0457 | ||
== 13-limit == | == 13-limit == | ||
Comma list: 55/54, 91/90, 100/99, 169/168 | |||
Mapping: [<1 5 8 10 8 9|, <0 -9 -15 -19 -12 -14|] | |||
POTE generator: ~13/10 = 454.429 | POTE generator: ~13/10 = 454.429 | ||
Vals: {{val list| 29, 37, 66 }} | |||
Badness: 0.0272 | Badness: 0.0272 | ||
= Ceratitid = | = Ceratitid = | ||
[[Comma list]]: 250/243, 1728/1715 | |||
[[Mapping]]: [<1 2 3 3|, <0 -9 -15 -4|] | |||
Wedgie: <<9 15 4 3 -19 -33|| | |||
[[POTE generator]]: ~36/35 = 54.384 | |||
{{Val list|legend=1| 22 }} | |||
Badness: 0.115 | [[Badness]]: 0.115 | ||
== 11-limit == | == 11-limit == | ||
Comma list: 55/54, 100/99, 5324/5145 | |||
Mapping: [<1 2 3 3 4|, <0 -9 -15 -4 -12|] | |||
POTE generator: ~36/35 = 54.376 | POTE generator: ~36/35 = 54.376 | ||
Vals: {{val list| 22 }} | |||
Badness: 0.0513 | Badness: 0.0513 | ||
== 13-limit == | == 13-limit == | ||
Comma list: 55/54, 65/63, 100/99, 352/343 | |||
Mapping: [<1 2 3 3 4 4|, <0 -9 -15 -4 -12 -7|] | |||
POTE generator: ~36/35 = 54.665 | POTE generator: ~36/35 = 54.665 | ||
Vals: {{val list| 22 }} | |||
Badness: 0.0447 | Badness: 0.0447 | ||
[[Category: | [[Category:Regular temperament theory]] | ||
[[Category:Temperament family]] | [[Category:Temperament family]] | ||
[[Category:Porcupine family| ]] <!-- main article --> | [[Category:Porcupine family| ]] <!-- main article --> | ||
[[Category:Porcupine]] | [[Category:Porcupine]] | ||
[[Category:Rank 2]] | [[Category:Rank 2]] | ||