Porwell family: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Units & misc. cleanup
Line 1: Line 1:
{{Technical data page}}
{{Technical data page}}
The '''porwell family''' of [[rank-3 temperament]]s tempers out the porwell comma, {{monzo| 11 1 -3 -2 }} = [[6144/6125]].
The '''porwell family''' of [[rank-3 temperament|rank-3]] [[regular temperament]]s [[tempering out|tempers out]] the [[porwell comma]] ({{monzo|legend=1| 11 1 -3 -2 }}, [[ratio]]: 6144/6125).


== Porwell a.k.a. hewuermity ==
== Porwell a.k.a. hewuermity ==
Line 8: Line 8:


{{Mapping|legend=1| 1 0 1 4 | 0 1 1 -1 | 0 0 -2 3 }}
{{Mapping|legend=1| 1 0 1 4 | 0 1 1 -1 | 0 0 -2 3 }}
: mapping generators: ~2, ~3, ~35/32
: mapping generators: ~2, ~3, ~35/32


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 702.3482, ~35/32 = 157.4677
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~3/2 = 702.3482{{c}}, ~35/32 = 157.4677{{c}}


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* 7- and [[9-odd-limit]]
* [[7-odd-limit|7-]] and [[9-odd-limit]]
: {{monzo list| 1 0 0 0 | 0 1 0 0 | 11/5 1/5 2/5 -2/5 | 11/5 1/5 -3/5 3/5 }}
: {{monzo list| 1 0 0 0 | 0 1 0 0 | 11/5 1/5 2/5 -2/5 | 11/5 1/5 -3/5 3/5 }}
: [[Eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.3.7/5
: [[eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.3.7/5


{{Optimal ET sequence|legend=1| 15, 22, 31, 46, 53, 84, 99, 229, 251, 282, 381 }}
{{Optimal ET sequence|legend=1| 15, 22, 31, 46, 53, 84, 99, 229, 251, 282, 381 }}


[[Badness]]: 0.142 × 10<sup>-3</sup>
[[Badness]] (Smith): 0.142 × 10<sup>-3</sup>


[[Projection pair]]s: 3 6125/2048 to 2.5.7
[[Projection pair]]s: <code>3 6125/2048</code> to 2.5.7


== Zeus ==
== Zeus ==
Line 38: Line 37:
{{Optimal ET sequence|legend=1| 22, 31, 53, 84e, 99e, 121, 130, 152, 282, 434de, 465d, 617de, 747cde, 899cdde }}
{{Optimal ET sequence|legend=1| 22, 31, 53, 84e, 99e, 121, 130, 152, 282, 434de, 465d, 617de, 747cde, 899cdde }}


[[Badness]]: 0.562 × 10<sup>-3</sup>
[[Badness]] (Smith): 0.562 × 10<sup>-3</sup>


== Hera ==
== Hera ==
Line 47: Line 46:
{{Mapping|legend=1| 1 0 1 4 9 | 0 1 1 -1 -3 | 0 0 -2 3 -6 }}
{{Mapping|legend=1| 1 0 1 4 9 | 0 1 1 -1 -3 | 0 0 -2 3 -6 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 701.8035, ~35/32 = 157.1649
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~3/2 = 701.8035{{c}}, ~35/32 = 157.1649{{c}}


{{Optimal ET sequence|legend=1| 46, 53, 84, 99, 130, 183, 313, 359, 542c, 672c }}
{{Optimal ET sequence|legend=1| 46, 53, 84, 99, 130, 183, 313, 359, 542c, 672c }}


[[Badness]]: 2.23 × 10<sup>-3</sup>
[[Badness]] (Smith): 2.23 × 10<sup>-3</sup>


=== 13-limit ===
=== 13-limit ===
Line 60: Line 59:
Mapping: {{mapping| 1 0 1 4 9 7 | 0 1 1 -1 -3 -2 | 0 0 -2 3 -6 -1 }}
Mapping: {{mapping| 1 0 1 4 9 7 | 0 1 1 -1 -3 -2 | 0 0 -2 3 -6 -1 }}


Optimal tuning (POTE): ~2 = 1\1, ~3/2 = 701.6641, ~35/32 = 157.1899
Optimal tuning (POTE): ~2 = 1200.0000{{c}}, ~3/2 = 701.6641{{c}}, ~35/32 = 157.1899{{c}}


{{Optimal ET sequence|legend=1| 46, 53, 84, 99, 130, 183, 313 }}
{{Optimal ET sequence|legend=0| 46, 53, 84, 99, 130, 183, 313 }}


Badness: 1.30 × 10<sup>-3</sup>
Badness (Smith): 1.30 × 10<sup>-3</sup>


== Semiporwell ==
== Semiporwell ==
Line 72: Line 71:


{{Mapping|legend=1| 2 0 0 11 14 | 0 1 1 -1 -2 | 0 0 2 -3 -1 }}
{{Mapping|legend=1| 2 0 0 11 14 | 0 1 1 -1 -2 | 0 0 2 -3 -1 }}
: mapping generators: ~99/70, ~3, ~128/99
: mapping generators: ~99/70, ~3, ~128/99


[[Optimal tuning]] ([[POTE]]): ~99/70 = 1\2, ~3/2 = 702.4613, ~128/99 = 442.4903
[[Optimal tuning]] ([[POTE]]): ~99/70 = 600.0000{{c}}, ~3/2 = 702.4613{{c}}, ~128/99 = 442.4903{{c}}


{{Optimal ET sequence|legend=1| 22, 46, 68, 84, 106, 130, 152, 282, 328, 480, 1112bccddee, 1242ccddee, 1722bcccdddeee }}
{{Optimal ET sequence|legend=1| 22, 46, 68, 84, 106, 130, 152, 282, 328, 480, 1112bccddee, 1242ccddee, 1722bcccdddeee }}


[[Badness]]: 1.25 × 10<sup>-3</sup>
[[Badness]] (Smith): 1.25 × 10<sup>-3</sup>


=== 13-limit ===
=== 13-limit ===
Line 88: Line 86:
Mapping: {{mapping| 2 0 0 11 14 15 | 0 1 1 -1 -2 -1 | 0 0 2 -3 -1 -6 }}
Mapping: {{mapping| 2 0 0 11 14 15 | 0 1 1 -1 -2 -1 | 0 0 2 -3 -1 -6 }}


Optimal tuning (POTE): ~99/70 = 1\2, ~3/2 = 702.3964, ~84/65 = 442.5902
Optimal tuning (POTE): ~99/70 = 600.0000{{c}}, ~3/2 = 702.3964{{c}}, ~84/65 = 442.5902{{c}}


{{Optimal ET sequence|legend=1| 22f, 38e, 46, 68, 84, 130, 198, 282, 328, 480f, 610cdef, 808cdeff, 1090ccdeefff, 1418bcccddeeefff }}
{{Optimal ET sequence|legend=0| 22f, 38e, 46, 68, 84, 130, 198, 282, 328, 480f, 610cdef, 808cdeff, 1090ccdeefff, 1418bcccddeeefff }}


Badness: 1.22 × 10<sup>-3</sup>
Badness (Smith): 1.22 × 10<sup>-3</sup>


[[Category:Temperament families]]
[[Category:Temperament families]]
[[Category:Porwell family| ]] <!-- main article -->
[[Category:Porwell family| ]] <!-- main article -->
[[Category:Rank 3]]
[[Category:Rank 3]]

Revision as of 10:38, 22 April 2026

This is a list showing technical temperament data. For an explanation of what information is shown here, you may look at the technical data guide for regular temperaments.

The porwell family of rank-3 regular temperaments tempers out the porwell comma (monzo[11 1 -3 -2, ratio: 6144/6125).

Porwell a.k.a. hewuermity

Subgroup: 2.3.5.7

Comma list: 6144/6125

Mapping[1 0 1 4], 0 1 1 -1], 0 0 -2 3]]

mapping generators: ~2, ~3, ~35/32

Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~3/2 = 702.3482 ¢, ~35/32 = 157.4677 ¢

Minimax tuning:

[[1 0 0 0, [0 1 0 0, [11/5 1/5 2/5 -2/5, [11/5 1/5 -3/5 3/5]
unchanged-interval (eigenmonzo) basis: 2.3.7/5

Optimal ET sequence15, 22, 31, 46, 53, 84, 99, 229, 251, 282, 381

Badness (Smith): 0.142 × 10-3

Projection pairs: 3 6125/2048 to 2.5.7

Zeus

Zeus tempers out 121/120, 176/175, and 385/384. See Biyatismic clan #Zeus.

Jupiter

Subgroup: 2.3.5.7.11

Comma list: 540/539, 5632/5625

Mapping[1 0 1 4 -5], 0 1 1 -1 6], 0 0 -2 3 -8]]

Optimal ET sequence22, 31, 53, 84e, 99e, 121, 130, 152, 282, 434de, 465d, 617de, 747cde, 899cdde

Badness (Smith): 0.562 × 10-3

Hera

Subgroup: 2.3.5.7.11

Comma list: 6144/6125, 8019/8000

Mapping[1 0 1 4 9], 0 1 1 -1 -3], 0 0 -2 3 -6]]

Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~3/2 = 701.8035 ¢, ~35/32 = 157.1649 ¢

Optimal ET sequence46, 53, 84, 99, 130, 183, 313, 359, 542c, 672c

Badness (Smith): 2.23 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 351/350, 2080/2079, 4096/4095

Mapping: [1 0 1 4 9 7], 0 1 1 -1 -3 -2], 0 0 -2 3 -6 -1]]

Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~3/2 = 701.6641 ¢, ~35/32 = 157.1899 ¢

Optimal ET sequence: 46, 53, 84, 99, 130, 183, 313

Badness (Smith): 1.30 × 10-3

Semiporwell

Subgroup: 2.3.5.7.11

Comma list: 6144/6125, 9801/9800

Mapping[2 0 0 11 14], 0 1 1 -1 -2], 0 0 2 -3 -1]]

mapping generators: ~99/70, ~3, ~128/99

Optimal tuning (POTE): ~99/70 = 600.0000 ¢, ~3/2 = 702.4613 ¢, ~128/99 = 442.4903 ¢

Optimal ET sequence22, 46, 68, 84, 106, 130, 152, 282, 328, 480, 1112bccddee, 1242ccddee, 1722bcccdddeee

Badness (Smith): 1.25 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 2080/2079, 3584/3575

Mapping: [2 0 0 11 14 15], 0 1 1 -1 -2 -1], 0 0 2 -3 -1 -6]]

Optimal tuning (POTE): ~99/70 = 600.0000 ¢, ~3/2 = 702.3964 ¢, ~84/65 = 442.5902 ¢

Optimal ET sequence: 22f, 38e, 46, 68, 84, 130, 198, 282, 328, 480f, 610cdef, 808cdeff, 1090ccdeefff, 1418bcccddeeefff

Badness (Smith): 1.22 × 10-3