208edo: Difference between revisions

Review
m Text replacement - "Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct" to "Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct"
 
(4 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|208}}
{{ED intro}}


== Theory ==
== Theory ==
208et [[tempering out|tempers out]] [[15625/15552]], the kleisma, and is the [[optimal patent val]] for the kleismic temperament [[metakleismic]], and 7-, 11- and 13-limit rank-3 [[tolerant]] temperament. It is also the optimal patent val for the rank-4 [[11-limit]] temperament tempering out [[896/891]], the [[pentacircle]] temperament. Other commas it tempers out include [[2200/2187]] in the 11-limit and [[325/324]], [[352/351]], [[364/363]] and [[625/624]] in the 13-limit.
208edo is closely related to [[104edo]], but the mappings for [[harmonic]] [[5/1|5]] differ. As an equal temperament, it [[tempering out|tempers out]] [[15625/15552]], the kleisma, and is the [[optimal patent val]] for the kleismic temperament [[metakleismic]], and 7-, 11- and 13-limit rank-3 [[tolerant]] temperament. It is also the optimal patent val for the rank-4 [[11-limit]] temperament tempering out [[896/891]], the [[pentacircle]] temperament. Other commas it tempers out include [[2200/2187]] in the 11-limit and [[325/324]], [[352/351]], [[364/363]] and [[625/624]] in the 13-limit.


=== Odd harmonics ===
=== Odd harmonics ===
Line 13: Line 13:
== Regular temperament properties ==
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
{| class="wikitable center-4 center-5 center-6"
|-
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Comma list|Comma List]]
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve Stretch (¢)
! rowspan="2" | Optimal<br />8ve stretch (¢)
! colspan="2" | Tuning Error
! colspan="2" | Tuning error
|-
|-
! [[TE error|Absolute]] (¢)
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
! [[TE simple badness|Relative]] (%)
Line 25: Line 26:
| 15625/15552, {{monzo| 57 -33 -2 }}
| 15625/15552, {{monzo| 57 -33 -2 }}
| {{mapping| 208 330 483 }}
| {{mapping| 208 330 483 }}
| -0.4301
| −0.4301
| 0.5409
| 0.5409
| 9.38
| 9.38
Line 32: Line 33:
| 2401/2400, 15625/15552, 179200/177147
| 2401/2400, 15625/15552, 179200/177147
| {{mapping| 208 330 483 584 }}
| {{mapping| 208 330 483 584 }}
| -0.3586
| −0.3586
| 0.4845
| 0.4845
| 8.40
| 8.40
Line 39: Line 40:
| 896/891, 2200/2187, 2401/2400, 3025/3024
| 896/891, 2200/2187, 2401/2400, 3025/3024
| {{mapping| 208 330 483 584 720 }}
| {{mapping| 208 330 483 584 720 }}
| -0.4330
| −0.4330
| 0.4582
| 0.4582
| 7.94
| 7.94
Line 46: Line 47:
| 325/324, 352/351, 364/363, 676/675, 2401/2400
| 325/324, 352/351, 364/363, 676/675, 2401/2400
| {{mapping| 208 330 483 584 720 770 }}
| {{mapping| 208 330 483 584 720 770 }}
| -0.4410
| −0.4410
| 0.4187
| 0.4187
| 7.26
| 7.26
Line 53: Line 54:
=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
{| class="wikitable center-all left-5"
|+Table of rank-2 temperaments by generator
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
! Periods<br>per 8ve
|-
! Periods<br />per 8ve
! Generator*
! Generator*
! Cents*
! Cents*
! Associated<br>Ratio*
! Associated<br />ratio*
! Temperaments
! Temperaments
|-
|-
| 1
| 1
| 47\208
| 47\208
| 251.15
| 271.15
| 1024/875
| 1024/875
| [[Quasiorwell]]
| [[Quasiorwell]]
Line 75: Line 77:
| 55\208<br>(3\208)
| 55\208<br>(3\208)
| 317.31<br>(17.31)
| 317.31<br>(17.31)
| 6/5<br>(81/80)
| 6/5<br>(126/125)
| [[Quadritikleismic]] (7-limit)
| [[Quadritikleismic]] (7-limit)
|}
|}
<nowiki />* [[Normal forms #Equave-reduced-generator form|Octave-reduced form]], reduced to the first half-octave, and [[normal forms #Minimal-generator form|minimal form]] in parentheses if distinct
[[Category:Metakleismic]]
[[Category:Tolerant]]
[[Category:Pentacircle]]