Landscape family: Difference between revisions

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The '''landscape family''' of [[rank-3 temperament]]s tempers out the [[landscape comma]], 250047/250000.
The '''landscape family''' of [[rank-3 temperament]]s tempers out the [[landscape comma]], 250047/250000.


Considered below is house, besides the 7-limit temperament. Discussed elsewhere are [[Kalismic temperaments #Odin|odin]] and [[Lehmerismic temperaments #Tyr|tyr]].
Discussed elsewhere are:
* ''[[Odin]]'' (+9801/9800 or +151263/151250) → [[Kalismic temperaments #Odin|Kalismic temperaments]]  
* ''[[Tyr]]'' (+3025/3024 or +102487/102400) → [[Lehmerismic temperaments #Tyr|Lehmerismic temperaments]]


== Landscape ==
Considered below are landy and house, besides the 7-limit temperament.
 
== Landscape ==
[[Subgroup]]: 2.3.5.7
[[Subgroup]]: 2.3.5.7


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[[Badness]] (Sintel): 0.094<!-- 0.02130 × 10<sup>-3</sup> by Smith's -->
[[Badness]] (Sintel): 0.094<!-- 0.02130 × 10<sup>-3</sup> by Smith's -->
== Landy ==
Landy tempers out the [[441/440|werckisma]] and [[4375/4356|fantaresma]], alongside the landscape comma.
[[Subgroup]]: 2.3.5.7.11
[[Comma list]]: 441/440, 4375/4356
{{Mapping|legend=1| 3 0 0 4 -1 | 0 1 0 -2 -2 | 0 0 1 2 3 }}
: mapping generators: ~63/50, ~3, ~5
[[Optimal tuning]]s:
* [[WE]]: ~63/50 = 400.078{{c}}, ~3/2 = 701.696{{c}}, ~5/4 = 385.162{{c}}
* [[CWE]]: ~63/50 = 400.000{{c}}, ~3/2 = 701.709{{c}}, ~5/4 = 385.341{{c}}
{{Optimal ET sequence|legend=1| 12, 15, 27e, 45e, 57, 60e, 72, 159 }}
[[Badness]] (Sintel): 0.792


== House ==
== House ==

Revision as of 04:49, 21 February 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 landscape family of rank-3 temperaments tempers out the landscape comma, 250047/250000.

Discussed elsewhere are:

Considered below are landy and house, besides the 7-limit temperament.

Landscape

Subgroup: 2.3.5.7

Comma list: 250047/250000

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

mapping generators: ~63/50, ~3, ~5

Optimal tunings:

  • WE: ~63/50 = 400.001 ¢, ~3/2 = 701.938 ¢, ~5/4 = 386.335 ¢
  • CWE: ~63/50 = 400.000 ¢, ~3/2 = 701.939 ¢, ~5/4 = 386.339 ¢

Minimax tuning:

[[9 0 0 0, [4 3 6 -3, [0 0 9 0, [4 -6 6 6]/9
unchanged-interval (eigenmonzo) basis: 2.5.7/3
[[12 0 0 0, [4 6 6 -3, [0 0 12 0, [8 -12 12 6]/12
unchanged-interval (eigenmonzo) basis: 2.5.9/7

Optimal ET sequence3, 12, 27, 45, 57, 60, 72, 99, 171, 441, 612, 1236, 1407, 1578, 1848, 2019, 6498, 8346, 8517, 10536, 12555

Badness (Sintel): 0.094

Landy

Landy tempers out the werckisma and fantaresma, alongside the landscape comma.

Subgroup: 2.3.5.7.11

Comma list: 441/440, 4375/4356

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

mapping generators: ~63/50, ~3, ~5

Optimal tunings:

  • WE: ~63/50 = 400.078 ¢, ~3/2 = 701.696 ¢, ~5/4 = 385.162 ¢
  • CWE: ~63/50 = 400.000 ¢, ~3/2 = 701.709 ¢, ~5/4 = 385.341 ¢

Optimal ET sequence12, 15, 27e, 45e, 57, 60e, 72, 159

Badness (Sintel): 0.792

House

House tempers out the quartisma alongside the landscape comma.

Subgroup: 2.3.5.7.11

Comma list: 250047/250000, 117440512/117406179

Mapping[3 0 2 8 16], 0 1 4 6 0], 0 0 -5 -10 2]]

mapping generators: ~63/50, ~3, ~9801/5120

Optimal tunings:

  • WE: ~63/50 = 399.996 ¢, ~3/2 = 701.960 ¢, ~9801/5120 = 1124.286 ¢
  • CWE: ~63/50 = 400.000 ¢, ~3/2 = 701.965 ¢, ~9801/5120 = 1124.298 ¢

Optimal ET sequence111, 159, 270, 696, 966, 1236, 1506, 2631, 2901, 4137, 4407, 8544e, 12951ce, 14187cee

Badness (Sintel): 2.305