Whitewood family: Difference between revisions

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The '''apotome family''' or '''whitewood family''' of temperaments tempers out the apotome, [[2187/2048]]. Consequently the fifths are always 4/7 of an octave, a distinctly flat 685.714 [[cent]]s. While quite flat, this is close enough to a just fifth to serve as one, and some people are fond of it.
{{Technical data page}}
The '''whitewood family''' of [[temperament]]s [[tempering out|tempers out]] the apotome, [[2187/2048]]. Consequently the [[3/2|fifth]]s are always 4/7 of an [[octave]], a distinctly flat 685.714 [[cent]]s. While quite flat, this is close enough to a just fifth to serve as one, and some people are fond of it.


The 5-limit version of this temperament is called ''whitewood'', to serve in contrast with the "blackwood" temperament which tempers out [[256/243]], the pythagorean limma. Whereas blackwood temperament can be thought of as a closed chain of 5 fifths and a major third generator, whitewood is a closed chain of 7 fifths and a major third generator. This means that blackwood is generally supported by 5''n''-edos, and whitewood is supported by 7''n''-edos, and the [[mos]] of both scales follow a similar pattern.
The 5-limit version of this temperament is called ''whitewood'', to serve in contrast with the [[blackwood]] temperament which tempers out [[256/243]], the pythagorean limma. Whereas blackwood temperament can be thought of as a closed chain of 5 fifths and a major third generator, whitewood is a closed chain of 7 fifths and a major third generator. This means that blackwood is generally supported by 5''n''-edos, and whitewood is supported by 7''n''-edos, and the [[mos]] of both scales follow a similar pattern.


The 14-note mos of whitewood, like the 10-note mos of blackwood, shares a number of interesting properties which derive from the relatively small circle of fifths common to both. From any major or minor triad in the scale, one can always move away by ~3/2 or ~4/3 to reach another triad of the same type. This contrasts with the diatonic scale, in which one will eventually "hit a wall" if one moves by perfect fifth for long enough; the chain of fifths will eventually "stop" and make the next fifth a diminished fifth. This means that this scale is, in a sense, "pantonal", since resolutions that work in one key will work in all other keys in the scale, at least keys that share the same chord quality.
The 14-note mos of whitewood, like the 10-note mos of blackwood, shares a number of interesting properties which derive from the relatively small circle of fifths common to both. From any major or minor triad in the scale, one can always move away by ~3/2 or ~4/3 to reach another triad of the same type. This contrasts with the diatonic scale, in which one will eventually "hit a wall" if one moves by perfect fifth for long enough; the chain of fifths will eventually "stop" and make the next fifth a diminished fifth. This means that this scale is, in a sense, "pantonal", since resolutions that work in one key will work in all other keys in the scale, at least keys that share the same chord quality.


Another interesting property is that it becomes possible to construct "super-linked" 5-limit chords. In whitewood[14], or blackwood[10], if one stacks alternating major and minor thirds on top of one another, one will eventually come back to the root without ever hitting a wall, and hence the pattern can continue forever. Since all of the diatonic modes can be thought of as a stacked chain of 7 alternating thirds, placed in inversion, this means that whitewood[14] and blackwood[10] also make for excellent "panmodal" scales, in which you can construct "modal" sounding sonorities in one key that will work in all keys.
Another interesting property is that it becomes possible to construct "super-linked" 5-limit chords. In Whitewood[14], or Blackwood[10], if one stacks alternating major and minor thirds on top of one another, one will eventually come back to the root without ever hitting a wall, and hence the pattern can continue forever. Since all of the diatonic modes can be thought of as a stacked chain of 7 alternating thirds, placed in inversion, this means that Whitewood[14] and Blackwood[10] also make for excellent "panmodal" scales, in which you can construct "modal" sounding sonorities in one key that will work in all keys.


Lastly, while blackwood fifths are sharp and thus necessitate the tuning as a whole to be sharp-leaning, whitewood fifths are flat and thus this tuning is generally flat-leaning.
Lastly, while blackwood fifths are sharp and thus necessitate the tuning as a whole to be sharp-leaning, whitewood fifths are flat and thus this tuning is generally flat-leaning.
Line 14: Line 15:
[[Comma list]]: 2187/2048
[[Comma list]]: 2187/2048


{{Mapping|legend=1| 7 11 16 | 0 0 1 }}
{{Mapping|legend=1| 7 11 0 | 0 0 1 }}


: mapping generators: ~9/8, ~5
: mapping generators: ~9/8, ~5


[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\7, ~5/4 = 374.469
[[Optimal tuning]]s:
* [[CTE]]: ~9/8 = 171.429, ~5/4 = 386.314 (~80/81 = 43.457)
: [[error map]]: {{val| 0.000 -16.241 0.000 }}
* [[POTE]]: ~9/8 = 171.429, ~5/4 = 374.469 (~80/81 = 31.612)
: error map: {{val| 0.000 -16.241 -11.845 }}


{{Optimal ET sequence|legend=1| 7, 21, 28, 35, 77bb }}
{{Optimal ET sequence|legend=1| 7, 21, 28, 35, 77bb }}


[[Badness]]: 0.154651
[[Badness]] (Smith): 0.154651


== Septimal whitewood ==
== Septimal whitewood ==
Line 29: Line 34:
[[Comma list]]: 36/35, 2187/2048
[[Comma list]]: 36/35, 2187/2048


{{Mapping|legend=1| 7 11 16 20 | 0 0 1 -1 }}
{{Mapping|legend=1| 7 11 0 36 | 0 0 1 -1 }}


{{Multival|legend=1| 0 7 -7 11 -11 -36 }}
[[Optimal tuning]]s:
 
* [[CTE]]: ~9/8 = 171.429, ~5/4 = 392.930 (~64/63 = 50.073)
[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\7, ~5/4 = 392.700
: [[error map]]: {{val| 0.000 -16.241 +6.617 +9.672 }}
* [[POTE]]: ~9/8 = 171.429, ~5/4 = 392.700 (~64/63 = 49.843)
: error map: {{val| 0.000 -16.241 +6.386 +9.903 }}


{{Optimal ET sequence|legend=1| 7, 14, 21, 28, 49b }}
{{Optimal ET sequence|legend=1| 7, 14, 21, 28, 49b }}


[[Badness]]: 0.113987
[[Badness]] (Smith): 0.113987


=== 11-limit ===
=== 11-limit ===
Line 44: Line 51:
Comma list: 36/35, 45/44, 2079/2048
Comma list: 36/35, 45/44, 2079/2048


Mapping: {{mapping| 7 11 16 20 24 | 0 0 1 -1 1 }}
Mapping: {{mapping| 7 11 0 36 8 | 0 0 1 -1 1 }}


Optimal tuning (POTE): ~9/8 = 1\7, ~5/4 = 389.968
Optimal tunings:
* CTE: ~9/8 = 171.429, ~5/4 = 390.178 (~64/63 = 47.321)
* POTE: ~9/8 = 171.429, ~5/4 = 389.968 (~64/63 = 47.111)


{{Optimal ET sequence|legend=1| 7, 14e, 21, 28, 49b }}
{{Optimal ET sequence|legend=0| 7, 14e, 21, 28, 49b }}


Badness: 0.060908
Badness (Smith): 0.060908


=== 13-limit ===
=== 13-limit ===
Line 57: Line 66:
Comma list: 27/26, 36/35, 45/44, 512/507
Comma list: 27/26, 36/35, 45/44, 512/507


Mapping: {{mapping| 7 11 16 20 24 26 | 0 0 1 -1 1 0 }}
Mapping: {{mapping| 7 11 0 36 8 26 | 0 0 1 -1 1 0 }}
 
Optimal tuning (POTE): ~9/8 = 1\7, ~5/4 = 390.735
 
{{Optimal ET sequence|legend=1| 7, 14e, 21, 28, 49bf }}
 
Badness: 0.039956
 
== Purpleheart ==
[[Subgroup]]: 2.3.7
 
[[Comma list]]: 2187/2048
 
{{Mapping|legend=1| 7 11 20 | 0 0 -1 }}
 
: mapping generators: ~9/8, ~7


[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\7, ~64/63 = 74.067
Optimal tunings:
* CTE: ~9/8 = 171.429, ~5/4 = 390.178 (~64/63 = 47.321)
* POTE: ~9/8 = 171.429, ~5/4 = 390.735 (~64/63 = 47.878)


{{Optimal ET sequence|legend=1| 7, 14, 21, 77bb, 98bb }}
{{Optimal ET sequence|legend=0| 7, 14e, 21, 28, 49bf }}


[[Badness]]:
Badness (Smith): 0.039956


== Redwood ==
== Redwood ==
Line 85: Line 81:
[[Comma list]]: 525/512, 729/700
[[Comma list]]: 525/512, 729/700


{{Mapping|legend=1| 7 11 16 20 | 0 0 1 -2 }}
{{Mapping|legend=1| 7 11 0 52 | 0 0 1 -2 }}
 
{{Multival|legend=1| 0 7 -14 11 -22 -52 }}


[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\7, ~5/4 = 378.152
[[Optimal tuning]]s:
* [[CTE]]: ~9/8 = 171.429, ~5/4 = 376.366 (~36/35 = 33.509)
: [[error map]]: {{val| 0.000 -16.241 -9.948 -7.271 }}
* [[POTE]]: ~9/8 = 171.429, ~5/4 = 378.152 (~36/35 = 35.295)
: error map: {{val| 0.000 -16.241 -8.162 -10.845 }}


{{Optimal ET sequence|legend=1| 7, 21d, 28d, 35 }}
{{Optimal ET sequence|legend=1| 7, 28d, 35 }}


[[Badness]]: 0.165257
[[Badness]] (Smith): 0.165257


=== 11-limit ===
=== 11-limit ===
Line 100: Line 98:
Comma list: 45/44, 385/384, 729/700
Comma list: 45/44, 385/384, 729/700


Mapping: {{mapping| 7 11 16 20 24 | 0 0 1 -2 1 }}
Mapping: {{mapping| 7 11 0 52 8 | 0 0 1 -2 1 }}


Optimal tuning (POTE): ~9/8 = 1\7, ~5/4 = 376.711
Optimal tunings:
* CTE: ~9/8 = 171.429, ~5/4 = 376.745 (~36/35 = 33.888)
* POTE: ~9/8 = 171.429, ~5/4 = 376.711 (~36/35 = 33.854)


{{Optimal ET sequence|legend=1| 7, 21d, 28d, 35 }}
{{Optimal ET sequence|legend=0| 7, 28d, 35 }}


Badness: 0.078193
Badness (Smith): 0.078193


== Mujannab ==
== Mujannab ==
Line 113: Line 113:
[[Comma list]]: 54/49, 64/63
[[Comma list]]: 54/49, 64/63


{{Mapping|legend=1| 7 11 16 20 | 0 0 1 0 }}
{{Mapping|legend=1| 7 11 0 20 | 0 0 1 0 }}


{{Multival|legend=1| 0 7 0 11 0 -20 }}
[[Optimal tuning]]s:
* [[CTE]]: ~9/8 = 171.429, ~5/4 = 386.314 (~80/81 = 43.457)
: [[error map]]: {{val| 0.000 -16.241 0.000 +59.746 }}
* [[POTE]]: ~9/8 = 171.429, ~5/4 = 395.187 (~15/14 = 52.330)
: error map: {{val| 0.000 -16.241 +8.873 +59.746 }}


[[Optimal tuning]] ([[POTE]]): ~9/8 = 1\7, ~5/4 = 395.187
{{Optimal ET sequence|legend=1| 7, 14d }}


{{Optimal ET sequence|legend=1| 7, 14d, 21dd }}
[[Badness]] (Smith): 0.105820
 
[[Badness]]: 0.105820


=== 11-limit ===
=== 11-limit ===
Line 128: Line 130:
Comma list: 45/44, 54/49, 64/63
Comma list: 45/44, 54/49, 64/63


Mapping: {{mapping| 7 11 16 20 24 | 0 0 1 0 1 }}
Mapping: {{mapping| 7 11 0 20 8 | 0 0 1 0 1 }}


Optimal tuning (POTE): ~9/8 = 1\7, ~5/4 = 394.661
Optimal tunings:
* CTE: ~9/8 = 171.429, ~5/4 = 384.318 (~33/32 = 41.461)
* POTE: ~9/8 = 171.429, ~5/4 = 394.661 (~33/32 = 51.804)


{{Optimal ET sequence|legend=1| 7, 14de, 21dd }}
{{Optimal ET sequence|legend=0| 7, 14de }}


Badness: 0.060985
Badness (Smith): 0.060985


=== 13-limit ===
=== 13-limit ===
Line 141: Line 145:
Comma list: 27/26, 45/44, 52/49, 64/63
Comma list: 27/26, 45/44, 52/49, 64/63


Mapping: {{mapping| 7 11 16 20 24 26 | 0 0 1 0 1 0 }}
Mapping: {{mapping| 7 11 0 20 8 26 | 0 0 1 0 1 0 }}


Optimal tuning (POTE): ~9/8 = 1\7, ~5/4 = 395.071
Optimal tunings:
* CTE: ~9/8 = 171.429, ~5/4 = 384.318 (~33/32 = 41.461)
* POTE: ~9/8 = 171.429, ~5/4 = 395.071 (~33/32 = 52.214)


{{Optimal ET sequence|legend=1| 7, 14de, 21dd }}
{{Optimal ET sequence|legend=0| 7, 14de }}


Badness: 0.042830
Badness (Smith): 0.042830


== Greenwood ==
== Greenwood ==
Line 158: Line 164:
: mapping generators: ~9/8, ~15/7
: mapping generators: ~9/8, ~15/7


{{Multival|legend=1| 0 14 7 22 11 -23 }}
[[Optimal tuning]]s:
 
* [[CTE]]: ~9/8 = 171.429, ~15/14 = 108.062 (~21/20 = 63.367)
[[Optimal tuning]] ([[CTE]]): ~9/8 = 1\7, ~15/14 = 108.062
: [[error map]]: {{val| 0.000 -16.241 +1.239 -3.621 }}
* [[POTE]]: ~9/8 = 171.429, ~15/14 = 101.367 (~21/20 = 70.062)
: error map: {{val| 0.000 -16.241 -12.152 -10.316 }}


{{Optimal ET sequence|legend=1| 14c, 21, 35 }}
{{Optimal ET sequence|legend=1| 7c, 14c, 21, 35, 84bbccd }}


[[Badness]]: 0.121752
[[Badness]] (Smith): 0.121752


=== 11-limit ===
=== 11-limit ===
Line 173: Line 181:
Mapping: {{mapping| 7 11 1 12 9 | 0 0 2 1 2 }}
Mapping: {{mapping| 7 11 1 12 9 | 0 0 2 1 2 }}


Optimal tuning (CTE): ~9/8 = 1\7, ~15/14 = 106.997
Optimal tunings:
* CTE: ~9/8 = 171.429, ~15/14 = 106.997 (~21/20 = 64.432)
* POTE: ~9/8 = 171.429, ~15/14 = 100.046 (~21/20 = 71.383)


{{Optimal ET sequence|legend=1| 14c, 21, 35, 49bcde, 84bbccde }}
{{Optimal ET sequence|legend=0| 7ce, 14c, 21, 35, 49bcde }}


Badness: 0.057471
Badness (Smith): 0.057471


=== 13-limit ===
=== 13-limit ===
Line 186: Line 196:
Mapping: {{mapping| 7 11 1 12 9 26 | 0 0 2 1 2 0 }}
Mapping: {{mapping| 7 11 1 12 9 26 | 0 0 2 1 2 0 }}


Optimal tuning (CTE): ~9/8 = 1\7, ~15/14 = 106.997
Optimal tunings:
* CTE: ~9/8 = 171.429, ~15/14 = 106.997 (~21/20 = 64.432)
* POTE: ~9/8 = 171.429, ~15/14 = 104.250 (~21/20 = 67.179)


{{Optimal ET sequence|legend=1| 14c, 21, 35 }}
{{Optimal ET sequence|legend=0| 7ce, 14c, 21, 35 }}


Badness: 0.054009
Badness (Smith): 0.054009


[[Category:Temperament families]]
[[Category:Temperament families]]
[[Category:Apotome family| ]] <!-- main article -->
[[Category:Pages with mostly numerical content]]
[[Category:Whitewood family| ]] <!-- main article -->
[[Category:Whitewood| ]] <!-- key article -->
[[Category:Whitewood| ]] <!-- key article -->
[[Category:Rank 2]]
[[Category:Rank 2]]

Latest revision as of 00:41, 24 June 2025

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 whitewood family of temperaments tempers out the apotome, 2187/2048. Consequently the fifths are always 4/7 of an octave, a distinctly flat 685.714 cents. While quite flat, this is close enough to a just fifth to serve as one, and some people are fond of it.

The 5-limit version of this temperament is called whitewood, to serve in contrast with the blackwood temperament which tempers out 256/243, the pythagorean limma. Whereas blackwood temperament can be thought of as a closed chain of 5 fifths and a major third generator, whitewood is a closed chain of 7 fifths and a major third generator. This means that blackwood is generally supported by 5n-edos, and whitewood is supported by 7n-edos, and the mos of both scales follow a similar pattern.

The 14-note mos of whitewood, like the 10-note mos of blackwood, shares a number of interesting properties which derive from the relatively small circle of fifths common to both. From any major or minor triad in the scale, one can always move away by ~3/2 or ~4/3 to reach another triad of the same type. This contrasts with the diatonic scale, in which one will eventually "hit a wall" if one moves by perfect fifth for long enough; the chain of fifths will eventually "stop" and make the next fifth a diminished fifth. This means that this scale is, in a sense, "pantonal", since resolutions that work in one key will work in all other keys in the scale, at least keys that share the same chord quality.

Another interesting property is that it becomes possible to construct "super-linked" 5-limit chords. In Whitewood[14], or Blackwood[10], if one stacks alternating major and minor thirds on top of one another, one will eventually come back to the root without ever hitting a wall, and hence the pattern can continue forever. Since all of the diatonic modes can be thought of as a stacked chain of 7 alternating thirds, placed in inversion, this means that Whitewood[14] and Blackwood[10] also make for excellent "panmodal" scales, in which you can construct "modal" sounding sonorities in one key that will work in all keys.

Lastly, while blackwood fifths are sharp and thus necessitate the tuning as a whole to be sharp-leaning, whitewood fifths are flat and thus this tuning is generally flat-leaning.

Whitewood

Subgroup: 2.3.5

Comma list: 2187/2048

Mapping: [⟨7 11 0], ⟨0 0 1]]

mapping generators: ~9/8, ~5

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 386.314 (~80/81 = 43.457)
error map: ⟨0.000 -16.241 0.000]
  • POTE: ~9/8 = 171.429, ~5/4 = 374.469 (~80/81 = 31.612)
error map: ⟨0.000 -16.241 -11.845]

Optimal ET sequence: 7, 21, 28, 35, 77bb

Badness (Smith): 0.154651

Septimal whitewood

Subgroup: 2.3.5.7

Comma list: 36/35, 2187/2048

Mapping: [⟨7 11 0 36], ⟨0 0 1 -1]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 392.930 (~64/63 = 50.073)
error map: ⟨0.000 -16.241 +6.617 +9.672]
  • POTE: ~9/8 = 171.429, ~5/4 = 392.700 (~64/63 = 49.843)
error map: ⟨0.000 -16.241 +6.386 +9.903]

Optimal ET sequence: 7, 14, 21, 28, 49b

Badness (Smith): 0.113987

11-limit

Subgroup: 2.3.5.7.11

Comma list: 36/35, 45/44, 2079/2048

Mapping: [⟨7 11 0 36 8], ⟨0 0 1 -1 1]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 390.178 (~64/63 = 47.321)
  • POTE: ~9/8 = 171.429, ~5/4 = 389.968 (~64/63 = 47.111)

Optimal ET sequence: 7, 14e, 21, 28, 49b

Badness (Smith): 0.060908

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 27/26, 36/35, 45/44, 512/507

Mapping: [⟨7 11 0 36 8 26], ⟨0 0 1 -1 1 0]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 390.178 (~64/63 = 47.321)
  • POTE: ~9/8 = 171.429, ~5/4 = 390.735 (~64/63 = 47.878)

Optimal ET sequence: 7, 14e, 21, 28, 49bf

Badness (Smith): 0.039956

Redwood

Subgroup: 2.3.5.7

Comma list: 525/512, 729/700

Mapping: [⟨7 11 0 52], ⟨0 0 1 -2]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 376.366 (~36/35 = 33.509)
error map: ⟨0.000 -16.241 -9.948 -7.271]
  • POTE: ~9/8 = 171.429, ~5/4 = 378.152 (~36/35 = 35.295)
error map: ⟨0.000 -16.241 -8.162 -10.845]

Optimal ET sequence: 7, 28d, 35

Badness (Smith): 0.165257

11-limit

Subgroup: 2.3.5.7.11

Comma list: 45/44, 385/384, 729/700

Mapping: [⟨7 11 0 52 8], ⟨0 0 1 -2 1]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 376.745 (~36/35 = 33.888)
  • POTE: ~9/8 = 171.429, ~5/4 = 376.711 (~36/35 = 33.854)

Optimal ET sequence: 7, 28d, 35

Badness (Smith): 0.078193

Mujannab

Subgroup: 2.3.5.7

Comma list: 54/49, 64/63

Mapping: [⟨7 11 0 20], ⟨0 0 1 0]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 386.314 (~80/81 = 43.457)
error map: ⟨0.000 -16.241 0.000 +59.746]
  • POTE: ~9/8 = 171.429, ~5/4 = 395.187 (~15/14 = 52.330)
error map: ⟨0.000 -16.241 +8.873 +59.746]

Optimal ET sequence: 7, 14d

Badness (Smith): 0.105820

11-limit

Subgroup: 2.3.5.7.11

Comma list: 45/44, 54/49, 64/63

Mapping: [⟨7 11 0 20 8], ⟨0 0 1 0 1]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 384.318 (~33/32 = 41.461)
  • POTE: ~9/8 = 171.429, ~5/4 = 394.661 (~33/32 = 51.804)

Optimal ET sequence: 7, 14de

Badness (Smith): 0.060985

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 27/26, 45/44, 52/49, 64/63

Mapping: [⟨7 11 0 20 8 26], ⟨0 0 1 0 1 0]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~5/4 = 384.318 (~33/32 = 41.461)
  • POTE: ~9/8 = 171.429, ~5/4 = 395.071 (~33/32 = 52.214)

Optimal ET sequence: 7, 14de

Badness (Smith): 0.042830

Greenwood

Subgroup: 2.3.5.7

Comma list: 405/392, 1323/1280

Mapping: [⟨7 11 1 12], ⟨0 0 2 1]]

mapping generators: ~9/8, ~15/7

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~15/14 = 108.062 (~21/20 = 63.367)
error map: ⟨0.000 -16.241 +1.239 -3.621]
  • POTE: ~9/8 = 171.429, ~15/14 = 101.367 (~21/20 = 70.062)
error map: ⟨0.000 -16.241 -12.152 -10.316]

Optimal ET sequence: 7c, 14c, 21, 35, 84bbccd

Badness (Smith): 0.121752

11-limit

Subgroup: 2.3.5.7.11

Comma list: 45/44, 99/98, 1323/1280

Mapping: [⟨7 11 1 12 9], ⟨0 0 2 1 2]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~15/14 = 106.997 (~21/20 = 64.432)
  • POTE: ~9/8 = 171.429, ~15/14 = 100.046 (~21/20 = 71.383)

Optimal ET sequence: 7ce, 14c, 21, 35, 49bcde

Badness (Smith): 0.057471

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 27/26, 45/44, 99/98, 640/637

Mapping: [⟨7 11 1 12 9 26], ⟨0 0 2 1 2 0]]

Optimal tunings:

  • CTE: ~9/8 = 171.429, ~15/14 = 106.997 (~21/20 = 64.432)
  • POTE: ~9/8 = 171.429, ~15/14 = 104.250 (~21/20 = 67.179)

Optimal ET sequence: 7ce, 14c, 21, 35

Badness (Smith): 0.054009

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