164edo: Difference between revisions

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Cleanup; +prime error table; +RTT table and rank-2 temperaments
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The ''164 equal division'' divides the octave into 164 equal parts of 7.317 cents each. In the 5-limit it tempers out the würschmidt comma, 393216/390625, and supplies the [[Optimal_patent_val|optimal patent val]] for [[Würschmidt_family|würschmidt temperament]]. In higher limits, also supplies the optimal patent val for the 7-limit, 1/41 octave period 41&123 temperament, and the 13-limit [[Gamelismic_family#Portent|momentous temperament]], the rank-three temperament tempering out 196/195, 352/351, 385/384 and 441/440.
The ''164 equal division'' divides the octave into 164 equal parts of 7.317 cents each. In the 5-limit it tempers out the [[würschmidt comma]], 393216/390625, and supplies the [[optimal patent val]] for the [[würschmidt]] temperament. In higher limits, also supplies the optimal patent val for the 7-limit, 1/41 octave period 41&123 temperament, and the 13-limit the [[Gamelismic family #Portent|momentous]] temperament, the rank-3 temperament tempering out 196/195, 352/351, 385/384 and 441/440.


164 = 4 * 41, with divisors 2, 4, 41, 82
164 = 4 × 41, with divisors 2, 4, 41, 82
 
=== Prime harmonics ===
{{Harmonics in equal|164}}
 
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
! rowspan="2" | Subgroup
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve stretch (¢)
! colspan="2" | Tuning error
|-
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
 
|-
| 2.3.5
| 393216/390625, {{monzo| 24 -21 4 }}
| [{{val| 164 260 381 }}]
| -0.316
| 0.262
| 3.58
|-
| 2.3.5.13
| 676/675, 256000/255879, 393216/390625
| [{{val| 164 260 381 607 }}]
| -0.300
| 0.229
| 3.13
|}
 
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
|+Table of rank-2 temperaments by generator
! Periods<br>per Otave
! Generator<br>(Reduced)
! Cents<br>(Reduced)
! Associated<br>Ratio
! Temperaments
|-
| 1
| 47\164
| 343.90
| 8000/6561
| [[Geb]]
|-
| 1
| 49\164
| 358.54
| 16/13
| [[Restles]] (164)
|-
| 1
| 53\164
| 387.80
| 5/4
| [[Würschmidt]]
|-
| 1
| 53\164
| 475.61
| 320/243
| [[Vulture]]
|-
| 1
| 69\164
| 504.88
| 104976/78125
| [[Countermeantone]]
|-
| 2
| 17\164
| 124.39
| 275/256
| [[Semivulture]] (164)
|-
| 4
| 68\164<br>(14\164)
| 497.56<br>(102.44)
| 4/3<br>(35/33)
| [[Undim]] (164deff) / [[unlit]] (164f)
|-
| 41
| 53\164<br>(1\164)
| 387.80<br>(7.32)
| 5/4<br>(32805/32768)
| [[Counterpyth]]
|}


[[Category:Equal divisions of the octave|###]] <!-- 3-digit number -->
[[Category:Equal divisions of the octave|###]] <!-- 3-digit number -->
[[Category:Würschmidt]]