432edo: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
ArrowHead294 (talk | contribs)
mNo edit summary
ArrowHead294 (talk | contribs)
mNo edit summary
Line 12: Line 12:


== Regular temperament properties ==
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
{{comma basis begin}}
|-
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Comma list|Comma List]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br />8ve Stretch (¢)
! colspan="2" | Tuning Error
|-
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
|-
|-
| 2.3
| 2.3
| {{monzo| 685 -432 }}
| {{monzo| 685 -432 }}
| {{mapping| 432 685 }}
| {{mapping| 432 685 }}
| -0.2596
| &minus;0.2596
| 0.2595
| 0.2595
| 9.34
| 9.34
Line 33: Line 24:
| {{monzo| 41 -20 -4 }}, {{monzo| -3 -23 17 }}
| {{monzo| 41 -20 -4 }}, {{monzo| -3 -23 17 }}
| {{mapping| 432 685 1003 }}
| {{mapping| 432 685 1003 }}
| -0.1440
| &minus;0.1440
| 0.2676
| 0.2676
| 9.63
| 9.63
Line 40: Line 31:
| 5120/5103, 703125/702464, 6565234375/6530347008
| 5120/5103, 703125/702464, 6565234375/6530347008
| {{mapping| 432 685 1003 1213 }}
| {{mapping| 432 685 1003 1213 }}
| -0.1631
| &minus;0.1631
| 0.2341
| 0.2341
| 8.43
| 8.43
|}
{{comma basis end}}


=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
{{rank-2 begin}}
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br />per 8ve
! Generator*
! Cents*
! Associated<br />Ratio*
! Temperaments
|-
|-
| 1
| 1
Line 66: Line 50:
| 4/3
| 4/3
| [[Undim]]
| [[Undim]]
|}
{{rank-2 end}}
{{orf}}
{{orf}}

Revision as of 01:45, 16 November 2024

← 431edo 432edo 433edo →
Prime factorization 24 × 33
Step size 2.77778 ¢ 
Fifth 253\432 (702.778 ¢)
Semitones (A1:m2) 43:31 (119.4 ¢ : 86.11 ¢)
Consistency limit 7
Distinct consistency limit 7

Template:EDO intro

Theory

432edo has a reasonable approximation to the 7-limit, where the equal temperament tempers out 5120/5103, 703125/702464, 40353607/40310784, 102760448/102515625, and 283115520/282475249. It supports and provides a good tuning for the 5-limit maja temperament.

Odd harmonics

Approximation of odd harmonics in 432edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +0.82 -0.20 +0.62 -1.13 -1.32 +1.14 +0.62 +0.60 -0.29 -1.34 -0.50
Relative (%) +29.6 -7.3 +22.3 -40.8 -47.4 +41.0 +22.3 +21.6 -10.5 -48.1 -17.9
Steps
(reduced)
685
(253)
1003
(139)
1213
(349)
1369
(73)
1494
(198)
1599
(303)
1688
(392)
1766
(38)
1835
(107)
1897
(169)
1954
(226)

Subsets and supersets

432 is a highly factorable number, factoring into 24 × 33, so 432edo has subset edos 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, and 216.

Regular temperament properties

Template:Comma basis begin |- | 2.3 | [685 -432 | [432 685]] | −0.2596 | 0.2595 | 9.34 |- | 2.3.5 | [41 -20 -4, [-3 -23 17 | [432 685 1003]] | −0.1440 | 0.2676 | 9.63 |- | 2.3.5.7 | 5120/5103, 703125/702464, 6565234375/6530347008 | [432 685 1003 1213]] | −0.1631 | 0.2341 | 8.43 Template:Comma basis end

Rank-2 temperaments

Template:Rank-2 begin |- | 1 | 163\432 | 452.78 | 125/96 | Maja |- | 4 | 179\432
(37\432) | 497.22
(102.78) | 4/3 | Undim Template:Rank-2 end Template:Orf