414edo: Difference between revisions
Created page with "'''414EDO''' is the equal division of the octave into 414 parts of 2.89855 cents each. It is closely related to 207edo, but the patent vals differ on the mappi..." Tags: Mobile edit Mobile web edit |
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[[Category: | == Theory == | ||
414edo is [[consistent]] to the [[17-odd-limit]] with a flat tendency for most of the [[harmonic]]s, making for a good full [[17-limit]] system. It is closely related to [[207edo]], but the [[patent val]]s differ on the mapping for [[harmonic]] [[5/1|5]]. It [[tempering out|tempers out]] {{monzo| -36 11 8 }} (submajor comma) and {{monzo| 1 -27 18 }} ([[ennealimma]]) in the 5-limit; [[2401/2400]], [[4375/4374]], and {{monzo| -37 4 12 1 }} in the 7-limit; [[3025/3024]], [[9801/9800]], [[41503/41472]], and 1265625/1261568 in the 11-limit; [[625/624]], [[729/728]], [[1575/1573]], [[2200/2197]], and 26411/26364 in the 13-limit; [[833/832]], [[1089/1088]], [[1225/1224]], [[1275/1274]], and [[1701/1700]] in the 17-limit. It [[support]]s the 11-limit [[hemiennealimmal]] and the 13-limit [[quatracot]]. | |||
=== Prime harmonics === | |||
{{Harmonics in equal|414}} | |||
=== Subsets and supersets === | |||
Since 414 factors into 2 × 3<sup>2</sup> × 23, 414edo has subset edos {{EDOs| 2, 3, 6, 9, 18, 23, 46, 69, 138, and 207 }}. | |||
== 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 | |||
| {{monzo| -36 11 8 }}, {{monzo| 1 -27 18 }} | |||
| {{mapping| 414 656 961 }} | |||
| +0.2222 | |||
| 0.1575 | |||
| 5.43 | |||
|- | |||
| 2.3.5.7 | |||
| 2401/2400, 4375/4374, {{monzo| -36 11 8 }} | |||
| {{mapping| 414 656 961 1162 }} | |||
| +0.2299 | |||
| 0.1371 | |||
| 4.73 | |||
|- | |||
| 2.3.5.7.11 | |||
| 2401/2400, 3025/3024, 4375/4374, 1366875/1362944 | |||
| {{mapping| 414 656 961 1162 1432 }} | |||
| +0.2182 | |||
| 0.1248 | |||
| 4.30 | |||
|- | |||
| 2.3.5.7.11.13 | |||
| 625/624, 729/728, 1575/1573, 2200/2197, 2401/2400 | |||
| {{mapping| 414 656 961 1162 1432 1532 }} | |||
| +0.1795 | |||
| 0.1431 | |||
| 4.94 | |||
|- | |||
| 2.3.5.7.11.13.17 | |||
| 625/624, 729/728, 833/832, 1089/1088, 1225/1224, 2200/2197 | |||
| {{mapping| 414 656 961 1162 1432 1532 1692 }} | |||
| +0.1751 | |||
| 0.1329 | |||
| 4.58 | |||
|} | |||
=== Rank-2 temperaments === | |||
{| class="wikitable center-all left-5" | |||
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | |||
|- | |||
! Periods<br />per 8ve | |||
! Generator* | |||
! Cents* | |||
! Associated<br />ratio* | |||
! Temperaments | |||
|- | |||
| 1 | |||
| 125\414 | |||
| 362.31 | |||
| 10125/8192 | |||
| [[Submajor]] (5-limit) | |||
|- | |||
| 2 | |||
| 61\414 | |||
| 176.81 | |||
| 195/176 | |||
| [[Quatracot]] | |||
|- | |||
| 9 | |||
| 109\414<br>(17\414) | |||
| 315.94<br>(49.28) | |||
| 6/5<br>(36/35) | |||
| [[Ennealimmal]] | |||
|- | |||
| 18 | |||
| 86\414<br>(6\414) | |||
| 249.28<br>(17.39) | |||
| 231/200<br>(99/98) | |||
| [[Hemiennealimmal]] | |||
|- | |||
| 18 | |||
| 164\414<br>(3\414) | |||
| 475.36<br>(8.70) | |||
| 1053/800<br>(1287/1280) | |||
| [[Semihemiennealimmal]] | |||
|} | |||
<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 | |||
== Music == | |||
; [[No Clue Music]] | |||
* [https://www.youtube.com/watch?v=j6KPW-Hr1sI ''DISconnectioN''] (2024) | |||
[[Category:Listen]] | |||
Latest revision as of 13:32, 13 March 2026
| ← 413edo | 414edo | 415edo → |
414 equal divisions of the octave (abbreviated 414edo or 414ed2), also called 414-tone equal temperament (414tet) or 414 equal temperament (414et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 414 equal parts of about 2.9 ¢ each. Each step represents a frequency ratio of 21/414, or the 414th root of 2.
Theory
414edo is consistent to the 17-odd-limit with a flat tendency for most of the harmonics, making for a good full 17-limit system. It is closely related to 207edo, but the patent vals differ on the mapping for harmonic 5. It tempers out [-36 11 8⟩ (submajor comma) and [1 -27 18⟩ (ennealimma) in the 5-limit; 2401/2400, 4375/4374, and [-37 4 12 1⟩ in the 7-limit; 3025/3024, 9801/9800, 41503/41472, and 1265625/1261568 in the 11-limit; 625/624, 729/728, 1575/1573, 2200/2197, and 26411/26364 in the 13-limit; 833/832, 1089/1088, 1225/1224, 1275/1274, and 1701/1700 in the 17-limit. It supports the 11-limit hemiennealimmal and the 13-limit quatracot.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.00 | -0.51 | -0.81 | -0.71 | -0.59 | +0.05 | -0.61 | +1.04 | +0.71 | -0.59 | -0.11 |
| Relative (%) | +0.0 | -17.4 | -27.8 | -24.5 | -20.5 | +1.8 | -21.0 | +35.8 | +24.5 | -20.4 | -3.7 | |
| Steps (reduced) |
414 (0) |
656 (242) |
961 (133) |
1162 (334) |
1432 (190) |
1532 (290) |
1692 (36) |
1759 (103) |
1873 (217) |
2011 (355) |
2051 (395) | |
Subsets and supersets
Since 414 factors into 2 × 32 × 23, 414edo has subset edos 2, 3, 6, 9, 18, 23, 46, 69, 138, and 207.
Regular temperament properties
| Subgroup | Comma list | Mapping | Optimal 8ve stretch (¢) |
Tuning error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3.5 | [-36 11 8⟩, [1 -27 18⟩ | [⟨414 656 961]] | +0.2222 | 0.1575 | 5.43 |
| 2.3.5.7 | 2401/2400, 4375/4374, [-36 11 8⟩ | [⟨414 656 961 1162]] | +0.2299 | 0.1371 | 4.73 |
| 2.3.5.7.11 | 2401/2400, 3025/3024, 4375/4374, 1366875/1362944 | [⟨414 656 961 1162 1432]] | +0.2182 | 0.1248 | 4.30 |
| 2.3.5.7.11.13 | 625/624, 729/728, 1575/1573, 2200/2197, 2401/2400 | [⟨414 656 961 1162 1432 1532]] | +0.1795 | 0.1431 | 4.94 |
| 2.3.5.7.11.13.17 | 625/624, 729/728, 833/832, 1089/1088, 1225/1224, 2200/2197 | [⟨414 656 961 1162 1432 1532 1692]] | +0.1751 | 0.1329 | 4.58 |
Rank-2 temperaments
| Periods per 8ve |
Generator* | Cents* | Associated ratio* |
Temperaments |
|---|---|---|---|---|
| 1 | 125\414 | 362.31 | 10125/8192 | Submajor (5-limit) |
| 2 | 61\414 | 176.81 | 195/176 | Quatracot |
| 9 | 109\414 (17\414) |
315.94 (49.28) |
6/5 (36/35) |
Ennealimmal |
| 18 | 86\414 (6\414) |
249.28 (17.39) |
231/200 (99/98) |
Hemiennealimmal |
| 18 | 164\414 (3\414) |
475.36 (8.70) |
1053/800 (1287/1280) |
Semihemiennealimmal |
* Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct
Music
- DISconnectioN (2024)