404edo: Difference between revisions

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{{novelty}}{{stub}}{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|404}}          
{{ED intro}}
==Theory==
 
404et tempers out [[703125/702464]], 1959552/1953125, 65625/65536, [[2401/2400]], [[2100875/2097152]] and 201768035/201326592 in the 7-limit and [[4000/3993]], [[540/539]], [[441/440]], [[8019/8000]], [[9801/9800]] and 160083/160000 in the 11-limit.
== Theory ==
404edo is [[enfactoring|enfactored]] in the 11-limit, with the same tuning as [[202edo]]. The alternative 404e [[val]], with lower overall error, [[tempering out|tempers out]] [[3025/3024]] and [[41503/41472]] in the 11-limit; and [[847/845]], [[1001/1000]], and [[1716/1715]] in the 13-limit, whereas the [[patent val]] in the 13-limit tempers out [[4225/4224]].  
 
=== Odd harmonics ===
{{Harmonics in equal|404}}
{{Harmonics in equal|404}}
==Regular temperament properties==
 
=== Subsets and supersets ===
Since 404 factors into {{factorization|404}}, 404edo has subset edos {{EDOs| 2, 4, 101, and 202 }}.
 
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
{| class="wikitable center-4 center-5 center-6"
! 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
|{{monzo| -160 101}}
|{{val| 404 640}}
| +0.3044
| 0.3045
| 10.25
|-
|2.3.5
|{{monzo| -13 17 -6}}, {{monzo| 23 6 -14}}
|{{val| 404 640 938}}
| +0.2280
| 0.2710
| 9.12
|-
|-
|2.3.5.7
! rowspan="2" | [[Subgroup]]
|2401/2400, 19683/19600, 65625/65536
! rowspan="2" | [[Comma list]]
|{{val| 404 640 938 1134}}
! rowspan="2" | [[Mapping]]
| +0.2164
! rowspan="2" | Optimal<br />8ve stretch (¢)
| 0.2356
! colspan="2" | Tuning error
| 7.93
|-
|-
|2.3.5.7.11
! [[TE error|Absolute]] (¢)
|441/440, 540/539, 8019/8000, 65625/65536
! [[TE simple badness|Relative]] (%)
|{{val| 404 640 938 1134 1398}}
| +0.1061
| 0.3049
| 10.26
|-
|-
|2.3.5.7.11.13
| 2.3.5.7.11.13
|441/440, 540/539, 8019/8000, 4225/4224, 86625/86528
| 243/242, 441/440, 4000/3993, 4225/4224, 65625/65536
|{{val| 404 ​640​ 938​ 1134 ​1398 ​1495}}
| {{mapping| 404 ​640​ 938​ 1134 ​1398 ​1495 }} (404)
| +0.0854
| +0.0854
| 0.2821
| 0.2821
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|}​
|}​


==Music==
== Trivia ==
* [https://www.youtube.com/watch?v=CDQMtcI542U ''Error 404: Tuning Not Found''] by Francium
A Scala file for this EDO is used as the 404 page of [[Sevish]]'s website.
 
== Music ==
; [[User:Francium|Francium]]
* [https://youtu.be/CDQMtcI542U?si=gvXoTa6CGuT36hCu ''Error 404: Tuning Not Found''] (2023)


[[Category:Listen]]
[[Category:Listen]]