Septisemi temperaments: Difference between revisions

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m Units & misc. cleanup
Switch to Sintel's badness, WE & CWE tunings, per community consensus
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[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
* [[CTE]]: ~2 = 1200.000{{c}}, ~3/2 = 666.499{{c}}
* [[WE]]: ~2 = 1210.600{{c}}, ~3/2 = 667.437{{c}}
: [[error map]]: {{val| +10.600 -23.917 +7.711 }}
* [[CWE]]: ~2 = 1200.000{{c}}, ~3/2 = 663.474{{c}}
: error map: {{val| 0.000 -38.481 -5.472 }}
<!-- * [[CTE]]: ~2 = 1200.000{{c}}, ~3/2 = 666.499{{c}}
: [[error map]]: {{val| 0.000 -35.456 +12.682 }}
: [[error map]]: {{val| 0.000 -35.456 +12.682 }}
* [[POTE]]: ~2 = 1200.000{{c}}, ~3/2 = 661.593{{c}}
* [[POTE]]: ~2 = 1200.000{{c}}, ~3/2 = 661.593{{c}}
: error map: {{val| 0.000 -40.362 -16.754 }}
: error map: {{val| 0.000 -40.362 -16.754 }} -->


{{Optimal ET sequence|legend=1| 2c, 7c, 9, 20b, 29b }}
{{Optimal ET sequence|legend=1| 2c, 7c, 9, 20b, 29b }}


[[Badness]] (Smith): 0.181941
[[Badness]] (Sintel): 4.27


=== 7-limit ===
=== 7-limit ===
Line 41: Line 45:


[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
* [[CTE]]: ~2 = 1200.000{{c}}, ~3/2 = 668.748{{c}}
* [[WE]]: ~2 = 1211.420{{c}}, ~3/2 = 669.369{{c}}
: [[error map]]: {{val| +11.420 -21.165 +18.481 -21.980 }}
* [[CWE]]: ~2 = 1200.000{{c}}, ~3/2 = 665.210{{c}}
: error map: {{val| 0.000 -36.745 +4.945 -42.777 }}
<!-- * [[CTE]]: ~2 = 1200.000{{c}}, ~3/2 = 668.748{{c}}
: [[error map]]: {{val| 0.000 -33.207 +26.177 -25.084 }}
: [[error map]]: {{val| 0.000 -33.207 +26.177 -25.084 }}
* [[POTE]]: ~2 = 1200.000{{c}}, ~3/2 = 663.059{{c}}
* [[POTE]]: ~2 = 1200.000{{c}}, ~3/2 = 663.059{{c}}
: error map: {{val| 0.000 -38.896 -7.960 -53.531 }}
: error map: {{val| 0.000 -38.896 -7.960 -53.531 }} -->


{{Optimal ET sequence|legend=1| 2c, 7c, 9, 20bdd, 29bdd }}
{{Optimal ET sequence|legend=1| 2c, 7c, 9, 20bdd, 29bdd }}


[[Badness]] (Smith): 0.055623
[[Badness]] (Sintel): 1.41


== Sodium ==
== Sodium ==
Line 59: Line 67:


[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
* [[CTE]]: ~2 = 1200.000{{c}}, ~7/6 = 325.425{{c}}
* [[WE]]: ~2 = 1207.624{{c}}, ~7/6 = 322.216{{c}}
: [[error map]]: {{val| +7.624 -49.898 +32.393 +13.072 }}
* [[CWE]]: ~2 = 1200.000{{c}}, ~7/6 = 322.210{{c}}
: error map: {{val| 0.000 -57.535 +24.737 -2.196 }}
<!-- * [[CTE]]: ~2 = 1200.000{{c}}, ~7/6 = 325.425{{c}}
: [[error map]]: {{val| 0.000 -51.104 +40.813 +7.450 }}
: [[error map]]: {{val| 0.000 -51.104 +40.813 +7.450 }}
* [[POTE]]: ~2 = 1200.000{{c}}, ~7/6 = 320.182{{c}}
* [[POTE]]: ~2 = 1200.000{{c}}, ~7/6 = 320.182{{c}}
: error map: {{val| 0.000 -61.591 +14.597 -8.280 }}
: error map: {{val| 0.000 -61.591 +14.597 -8.280 }} -->


{{Optimal ET sequence|legend=1| 4, 11, 15b }}
{{Optimal ET sequence|legend=1| 4, 11 }}


[[Badness]] (Smith): 0.055814
[[Badness]] (Sintel): 1.41


[[Category:Temperament collections]]
[[Category:Temperament collections]]

Revision as of 14:45, 19 November 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.

This is a collection of very low complexity temperaments tempering out the septimal minor semitone, 21/20, and hence equating 5/3 with 7/4, and 10/7 with 3/2.

Temperaments discussed elsewhere are:

Considered below are fluorine and sodium.

Fluorine

5-limit (avila)

Subgroup: 2.3.5

Comma list: 729/640

Mapping[1 0 -7], 0 1 6]]

mapping generators: ~2, ~3

Optimal tunings:

  • WE: ~2 = 1210.600 ¢, ~3/2 = 667.437 ¢
error map: +10.600 -23.917 +7.711]
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 663.474 ¢
error map: 0.000 -38.481 -5.472]

Optimal ET sequence2c, 7c, 9, 20b, 29b

Badness (Sintel): 4.27

7-limit

Subgroup: 2.3.5.7

Comma list: 21/20, 243/224

Mapping[1 0 -7 -5], 0 1 6 5]]

Optimal tunings:

  • WE: ~2 = 1211.420 ¢, ~3/2 = 669.369 ¢
error map: +11.420 -21.165 +18.481 -21.980]
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 665.210 ¢
error map: 0.000 -36.745 +4.945 -42.777]

Optimal ET sequence2c, 7c, 9, 20bdd, 29bdd

Badness (Sintel): 1.41

Sodium

Subgroup: 2.3.5.7

Comma list: 21/20, 54/49

Mapping[1 1 1 2], 0 2 5 3]]

mapping generators: ~2, ~7/6

Optimal tunings:

  • WE: ~2 = 1207.624 ¢, ~7/6 = 322.216 ¢
error map: +7.624 -49.898 +32.393 +13.072]
  • CWE: ~2 = 1200.000 ¢, ~7/6 = 322.210 ¢
error map: 0.000 -57.535 +24.737 -2.196]

Optimal ET sequence4, 11

Badness (Sintel): 1.41