18355edo: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Wikispaces>genewardsmith
**Imported revision 557206015 - Original comment: **
 
ArrowHead294 (talk | contribs)
mNo edit summary
 
(8 intermediate revisions by 6 users not shown)
Line 1: Line 1:
<h2>IMPORTED REVISION FROM WIKISPACES</h2>
{{Infobox ET}}
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
{{ED intro}} It is an extremely strong 7-limit system, with a lower [[Tenney-Euclidean temperament measures #TE simple badness|relative error]] than any division until [[84814edo|84814]], and a lower [[Tenney-Euclidean temperament measures #TE simple badness|TE logflat badness]] than any besides [[171edo|171]] and [[3125edo|3125]].
: This revision was by author [[User:genewardsmith|genewardsmith]] and made on <tt>2015-08-23 12:07:13 UTC</tt>.<br>
 
: The original revision id was <tt>557206015</tt>.<br>
=== Prime harmonics ===
: The revision comment was: <tt></tt><br>
{{Harmonics in equal|18355|prec=4}}
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
<h4>Original Wikitext content:</h4>
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;white-space: pre-wrap ! important" class="old-revision-html">The 18355 division divides the octave into 18355 equal parts of 0.065377 cents each. It is a very strong 7-limit division, with a lower [[Tenney-Euclidean temperament measures#TE simple badness|relative error]] than any division until [[84814edo|84814]], and a lower [[Tenney-Euclidean metrics#Logflat TE badness| TE loglfat badness]] than any besides [[171edo|171]] and [[3125edo|3125]].</pre></div>
<h4>Original HTML content:</h4>
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;width:200%;white-space: pre-wrap ! important" class="old-revision-html">&lt;html&gt;&lt;head&gt;&lt;title&gt;18355edo&lt;/title&gt;&lt;/head&gt;&lt;body&gt;The 18355 division divides the octave into 18355 equal parts of 0.065377 cents each. It is a very strong 7-limit division, with a lower &lt;a class="wiki_link" href="/Tenney-Euclidean%20temperament%20measures#TE simple badness"&gt;relative error&lt;/a&gt; than any division until &lt;a class="wiki_link" href="/84814edo"&gt;84814&lt;/a&gt;, and a lower &lt;a class="wiki_link" href="/Tenney-Euclidean%20metrics#Logflat TE badness"&gt; TE loglfat badness&lt;/a&gt; than any besides &lt;a class="wiki_link" href="/171edo"&gt;171&lt;/a&gt; and &lt;a class="wiki_link" href="/3125edo"&gt;3125&lt;/a&gt;.&lt;/body&gt;&lt;/html&gt;</pre></div>

Latest revision as of 14:08, 20 February 2025

← 18354edo 18355edo 18356edo →
Prime factorization 5 × 3671
Step size 0.0653773 ¢ 
Fifth 10737\18355 (701.956 ¢)
Semitones (A1:m2) 1739:1380 (113.7 ¢ : 90.22 ¢)
Consistency limit 15
Distinct consistency limit 15

18355 equal divisions of the octave (abbreviated 18355edo or 18355ed2), also called 18355-tone equal temperament (18355tet) or 18355 equal temperament (18355et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 18355 equal parts of about 0.0654 ¢ each. Each step represents a frequency ratio of 21/18355, or the 18355th root of 2. It is an extremely strong 7-limit system, with a lower relative error than any division until 84814, and a lower TE logflat badness than any besides 171 and 3125.

Prime harmonics

Approximation of prime harmonics in 18355edo
Harmonic 2 3 5 7 11 13 17 19 23 29 31
Error Absolute (¢) +0.0000 +0.0009 +0.0006 +0.0000 +0.0087 +0.0280 -0.0249 +0.0190 +0.0013 -0.0158 -0.0179
Relative (%) +0.0 +1.3 +1.0 +0.0 +13.3 +42.9 -38.0 +29.0 +2.0 -24.1 -27.3
Steps
(reduced)
18355
(0)
29092
(10737)
42619
(5909)
51529
(14819)
63498
(8433)
67922
(12857)
75025
(1605)
77971
(4551)
83030
(9610)
89168
(15748)
90934
(17514)