User:Dummy index/Semitritave: Difference between revisions

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==False octave==
==False octave==
Semitritave is available for [[Ed5/3 through ed7/3|false octave]]. Differ from [[acoustic phi]] or [[ed7/4]], two equave makes 3:1, well-known equave.
Assuming the semitritave is available for [[Ed5/3 through ed7/3|false octave]]. Differ from [[acoustic phi]] or [[ed7/4]], two equave makes 3:1, well-known equave.


==2*N-edt==
==2*N-edt==
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| 24edo
| 24edo
| hypopent
| hypopent
| "Fifth" is 11\19edst ≈ 11/8. Can convert easily from 19edo.
| "Fifth" is 11\19edst ≈ 11/8. Can convert easily from 19edo. "minor tenth" (e.g. (19+3+2)\19edst) ~ 2/1. "Major triad" ≈ 16:19:22.
|-
|-
| 23
| 23
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==Rank-2 temperaments==
==Rank-2 temperaments==


===Tribilo as micromeantone===
===Tribilo as a micromeantone===
{{See also|Tribilo family}}
{{See also|Tribilo family}}


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[[POTE generator]]: ~121/96 = 400.0108 (or ~11/8 = 550.9667)
[[POTE generator]]: ~121/96 = 400.0108 (or ~11/8 = 550.9667)


Optimal GPV sequence: b14, b24, b38, b138, b176, b214, b242
[[Optimal ET sequence]]: b14, b24, b38, b138, b176, b214, b252


[[Badness]]: 2.44 × 10<sup>-3</sup>
[[Badness]]: 2.44 × 10<sup>-3</sup>
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http://x31eq.com/cgi-bin/rt.cgi?limit=3_2_11_13%2F5_17&ets=b38_b62&tuning=po
http://x31eq.com/cgi-bin/rt.cgi?limit=3_2_11_13%2F5_17&ets=b38_b62&tuning=po
===b24 & b66 as microaugust===
===b24 & b66 as a microaugust===


Subgroup: 3.5/2.11/8
Subgroup: 3.5/2.11/8
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[[Tp tuning|POL2 generator]]: ~288/275 = 82.9018 (or ~11/8 = 551.083)
[[Tp tuning|POL2 generator]]: ~288/275 = 82.9018 (or ~11/8 = 551.083)


Optimal GPV sequence: b24, b66, b90, b114, b138, b252
[[Optimal ET sequence]]: b24, b66, b90, b114, b138, b252


[[Tp tuning #T2 tuning|RMS error]]:  
[[Tp tuning #T2 tuning|RMS error]]:  
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http://x31eq.com/cgi-bin/rt.cgi?limit=3_5%2F2_16%2F7_11%2F8_13%2F2&ets=b24_b66p&tuning=po
http://x31eq.com/cgi-bin/rt.cgi?limit=3_5%2F2_16%2F7_11%2F8_13%2F2&ets=b24_b66p&tuning=po
===b38 & b54 as microsensi===
===b32 & b56 as a microdiminished===
 
Subgroup: 3.16.5.11
 
http://x31eq.com/cgi-bin/rt.cgi?limit=3_16_5_11&ets=b32_b56&tuning=po
===subgroup 3.7.11 seems to be a lot===
===Vulture (no-fives Buzzard)===
 
Subgroup: 3.2.7
 
http://x31eq.com/cgi-bin/rt.cgi?limit=3_2_7&ets=b8_b84&tuning=po
===b38 & b54 as a microsensi===


Subgroup: 3.2.7.11/5
Subgroup: 3.2.7.11/5
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[[Tp tuning|POL2 generator]]: ~896/729 = 351.4241 (or ~99/70 = 599.5534)
[[Tp tuning|POL2 generator]]: ~896/729 = 351.4241 (or ~99/70 = 599.5534)


Optimal GPV sequence: b38, b54, b92
[[Optimal ET sequence]]: b38, b54, b92


[[Tp tuning #T2 tuning|RMS error]]:  
[[Tp tuning #T2 tuning|RMS error]]:  
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http://x31eq.com/cgi-bin/rt.cgi?limit=3_2_7_11%2F5_13%2F5&ets=b38_b54&tuning=po
http://x31eq.com/cgi-bin/rt.cgi?limit=3_2_7_11%2F5_13%2F5&ets=b38_b54&tuning=po
===b26 & b88 as microoneirotonic===
===b26 & b88 as a microoneirotonic===


Subgroup: 3.5.7.26
Subgroup: 3.5.7.26
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[[POTE generator]]: ~26/21 = 367.0018 (or ~7/5 = 583.9757)
[[POTE generator]]: ~26/21 = 367.0018 (or ~7/5 = 583.9757)


Optimal GPV sequence: b10, b16, b26, b62, b88, b114
[[Optimal ET sequence]]: b10, b16, b26, b62, b88, b114


[[Badness]]: 1.43 × 10<sup>-3</sup>
[[Badness]]: 1.43 × 10<sup>-3</sup>
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Related temperament: [[mirkat]]
Related temperament: [[mirkat]]


==Relationship==
==Another periods==
On this micromeantone, "minor tenth" (e.g. "(19+3+2)\19") ~ 2/1. Re-breaking by real octave, results in [[6L 3s]] i. e. LsLLLsLLs, tribilo or triforce.
 
<math>\sqrt{3}^{\sqrt{2}} \approx \varphi^{\varphi}</math> (off by 3 cents). However, this does not mean that acoustic phi and semitritave should be used together.
 
Divide or reverse divide by silver [[Metallic MOS]]:<br />
<math>\sqrt{3}^{\sqrt{2} - 1}</math> ≈ 394¢<br />
951¢ => 2 * 394¢ + 1 * 163¢ => 5 * 163¢ + 2 * 68¢<br />
1 * 951¢ + 1 * 394¢ => 3 * 394¢ + 1 * 163¢ => 3 * 231¢ + 4 * 163¢ (3L 4s (1345¢ equivalent))<br />
2 * 951¢ + 1 * 394¢ => 5 * 394¢ + 2 * 163¢ (5L 2s (2296¢ equivalent))<br />
231¢ is near 8/7, 163¢ is near 11/10.<br />
http://x31eq.com/cgi-bin/rt.cgi?limit=3_8_10_7_11_19&ets=b10_b34&tuning=po
 
===== 3L 4s (1345¢ equivalent) =====
{| class="wikitable"
!
!Cents
!In L's and s's
!Notation
!Approximate ratios<ref>based on treating as a 3.8.10.7.11.19 subgroup; other approaches are possible.</ref>
|-
|unison
|0
|0L + 0s
|C
|1/1
|-
|neutral 2nd
|163.162
|0L + 1s
|vD
|11/10, 10/9, 21/19
|-
|major 2nd
|230.746
|1L + 0s
|D
|8/7, 9/8
|-
|neutral 3rd
|393.908
|1L + 1s
|vE
|5/4, 24/19
|-
|perfect 4th
|557.070
|1L + 2s
|F
|11/8
|-
|perfect 5th
|787.816
|2L + 2s
|G
|30/19, 11/7
|-
|neutral 6th
|950.978
|2L + 3s
|vA
|19/11, 33/19
|-
|neutral 7th
|1181.723
|3L + 3s
|vB
|(2/1)
|-
|octave
|1344.885
|3L + 4s
|C
|24/11
|-
|neutral 9th
|1508.047
|3L + 5s
|vD
|12/5,19/8
|-
|major 9th
|1575.631
|4L + 4s
|D
|(5/2)
|-
|neutral 10th
|1738.793
|4L + 5s
|vE
|30/11,19/7
|-
|perfect 11th
|1901.955
|4L + 6s
|F
|3/1
|}
<references/>
 
2s ≈ 326.324¢ ≈ (6/5),11/9


==Memo==
==Memo==
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[http://x31eq.com/cgi-bin/pregular.cgi?limit=3.2.5.13.17&error=5.0 3.2.5.13.17 => 54edt],
[http://x31eq.com/cgi-bin/pregular.cgi?limit=3.2.5.13.17&error=5.0 3.2.5.13.17 => 54edt],
[http://x31eq.com/cgi-bin/pregular.cgi?limit=3.10.14.17.11%2F8&error=5.0 3.10.14.17.11/8 => 62edt]
[http://x31eq.com/cgi-bin/pregular.cgi?limit=3.10.14.17.11%2F8&error=5.0 3.10.14.17.11/8 => 62edt]
<math>\sqrt{3}^{\sqrt{2}} \approx \varphi^{\varphi}</math> (off by 3 cents)<br />
Hints for silver [[Metallic MOS]]<br />
<math>\sqrt{3}^{\sqrt{2} - 1}</math> ≈ 394¢<br />
1 * 851¢ + 1 * 394¢ => 3 * 394¢ + 1 * 163¢ => 3 * 231¢ + 4 * 163¢ (3L 4s)<br />
2 * 851¢ + 1 * 394¢ => 5 * 394¢ + 2 * 163¢ (5L 2s)<br />