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<h2>IMPORTED REVISION FROM WIKISPACES</h2>
In the theory of [[Margo_Schulter|Margo Schulter]], ''interseptimal'' is a category of intervals which occupy regions intermediate between two septimal ratios such as [[8/7|8/7]] and [[7/6|7/6]], or [[12/7|12/7]] and [[7/4|7/4]]. There are four interseptimal regions given below, with approximate cents ranges from Schulter's article [http://www.bestii.com/%7Emschulter/IntervalSpectrumRegions.txt Regions of the Interval Spectrum]:
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
: This revision was by author [[User:MasonGreen1|MasonGreen1]] and made on <tt>2016-05-03 01:23:45 UTC</tt>.<br>
: The original revision id was <tt>581952677</tt>.<br>
: The revision comment was: <tt></tt><br>
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">In the theory of [[Margo Schulter]], //interseptimal// is a category of intervals which occupy regions intermediate between two septimal ratios such as [[8_7|8/7]] and [[7_6|7/6]], or [[12_7|12/7]] and [[7_4|7/4]]. There are four interseptimal regions given below, with approximate cents ranges from Schulter's article [[http://www.bestii.com/%7Emschulter/IntervalSpectrumRegions.txt|Regions of the Interval Spectrum]]:
# Maj2-min3 -- intermediate between 8/7 and 7/6 -- 240¢-260¢
# Maj3-4 -- intermediate between [[9_7|9/7]] and [[21_16|21/16]] -- 440¢-468¢
# 5-min6 -- intermediate between [[32_21|32/21]] and [[14_9|14/9]] -- 732¢-760¢
# Maj6-min7 -- intermediate between 12/7 and 7/4 -- 940¢-960¢


Interseptimal intervals are well-represented in [[24edo]] at 250¢, 450¢, 750¢ and 950¢. They also appear in [[19edo]] and [[29edo]].
<ol><li>Maj2-min3 -- intermediate between 8/7 and 7/6 -- 240¢-260¢</li><li>Maj3-4 -- intermediate between [[9/7|9/7]] and [[21/16|21/16]] -- 440¢-468¢</li><li>5-min6 -- intermediate between [[32/21|32/21]] and [[14/9|14/9]] -- 732¢-760¢</li><li>Maj6-min7 -- intermediate between 12/7 and 7/4 -- 940¢-960¢</li></ol>


As they fall in ambiguous zones between simpler categories, they are inevitably xenharmonic. This also makes them difficult to name: do we classify a 250-cent interval as a second, a third, both, or neither? One option is to give each region a distinct name (analogous to using the word //tritone// rather than diminished fifth or augmented fourth). Possible names that could be used are:
Interseptimal intervals are well-represented in [[24edo|24edo]] at 250¢, 450¢, 750¢ and 950¢. They also appear in [[19edo|19edo]] and [[29edo|29edo]].


# 240¢-260¢ -- semifourth -- an interval of this size is around half the size of a perfect fourth.
As they fall in ambiguous zones between simpler categories, they are inevitably xenharmonic. This also makes them difficult to name: do we classify a 250-cent interval as a second, a third, both, or neither? One option is to give each region a distinct name (analogous to using the word ''tritone'' rather than diminished fifth or augmented fourth). Possible names that could be used are:
# 440¢-468¢ -- semisixth -- an interval of this size is around half the size of a major sixth.
 
# 732¢-760¢ -- semitenth -- an interval of this size is around half the size of a major tenth (i. e., compound major third). Another possible name is sesquifourth (since this is also about one and a half times the size of a perfect fourth).
<ol><li>240¢-260¢ -- semifourth -- an interval of this size is around half the size of a perfect fourth.</li><li>440¢-468¢ -- semisixth -- an interval of this size is around half the size of a major sixth.</li><li>732¢-760¢ -- semitenth -- an interval of this size is around half the size of a major tenth (i. e., compound major third). Another possible name is sesquifourth (since this is also about one and a half times the size of a perfect fourth).</li><li>940¢-960¢ -- semitwelfth -- an interval of this size is around half the size of a perfect twelfth (i e., a compound perfect fifth, or tritave). All even [[edt|edts]] have a semitwelfth of approximately 951 cents, analogous to the 600 cent tritone shared by all even edos.</li></ol>
# 940¢-960¢ -- semitwelfth -- an interval of this size is around half the size of a perfect twelfth (i e., a compound perfect fifth, or tritave). All even [[edt|edts]] have a semitwelfth of approximately 951 cents, analogous to the 600 cent tritone shared by all even edos.


This makes notating these intervals very easy as long as we have an agreed-upon symbol for "semi".
This makes notating these intervals very easy as long as we have an agreed-upon symbol for "semi".
Line 25: Line 13:
By analogy the tritone could also be called a semioctave, although the term tritone is so well-established that seems is little reason to change it now. A key difference is that the tritone is intermediate between two septimal ratios separated by a jubilisma (50:49), whereas the other interseptimal ranges listed above are between two septimal ratios separated by a slendro diesis (49:48).
By analogy the tritone could also be called a semioctave, although the term tritone is so well-established that seems is little reason to change it now. A key difference is that the tritone is intermediate between two septimal ratios separated by a jubilisma (50:49), whereas the other interseptimal ranges listed above are between two septimal ratios separated by a slendro diesis (49:48).


 
==Examples==
==Examples==  
Some interseptimal intervals in all four ranges, both just and tempered, are listed below.
Some interseptimal intervals in all four ranges, both just and tempered, are listed below.


===Maj2-min3 - 240¢-260¢===  
===Maj2-min3 - 240¢-260¢===
||~ Interval ||~ Cents Value ||~ Prime Limit (if applicable) ||
|| 147/128 || 239.607 || 7 ||
|| 1\[[5edo]] || 240.000 || - ||
|| 54/47 || 240.358 || 47 ||
|| 23/20 || 241.961 || 23 ||
|| 1152/1001 || 243.238 || 13 ||
|| 38/33 || 244.240 || 19 ||
|| 144/125 || 244.969 || 5 ||
|| [[15_13|15/13]] || 247.741 || 13 ||
|| 6\[[29edo]] || 248.276 || - ||
|| 5\[[24edo]] || 250.000 || - ||
|| 52/45 || 250.304 || 13 ||
|| 37/32 || 251.344 || 37 ||
|| 81/70 || 252.680 || 7 ||
|| 4\[[19edo]] || 252.632 || - ||
|| [[22_19|22/19]] || 253.805 || 19 ||
|| 29/25 || 256.950 || 29 ||
|| 3\[[14edo]] || 257.143 || - ||
|| 297/256 || 257.183 || 11 ||
|| 36/31 || 258.874 || 31 ||
|| 5\[[23edo]] || 260.870 || - ||
 
===Maj3-4 - 440-468===
||~ Interval ||~ Cents Value ||~ Prime Limit (if applicable) ||
|| 5\[[88cET]] or 11\[[30edo]] || 440.000 || - ||
|| 40/31 || 441.278 || 31 ||
|| 7\[[19edo]] || 442.015 || - ||
|| 31/24 || 443.081 || 31 ||
|| 10\[[27edo]] || 444.444 || - ||
|| [[22_17|22/17]] || 446.363 || 17 ||
|| [[35_27|35/27]] || 449.275 || 7 ||
|| 3\[[8edo]] || 450.000 || - ||
|| 48/37 || 450.611 || 37 ||
|| [[13_10|13/10]] || 454.214 || 13 ||
|| 11\[[29edo]] || 455.172 || - ||
|| 125/96 || 456.986 || 5 ||
|| 8\[[21edo]] || 457.143 || - ||
|| 56/43 || 457.308 || 43 ||
|| 43/33 || 458.245 || 43 ||
|| 30/23 || 459.994 || 23 ||
|| 5\[[13edo]] || 461.538 || - ||
|| 47/36 || 461.597 || 47 ||
|| [[64_49|64/49]] || 462.348 || 7 ||
|| 98/75 || 463.069 || 7 ||
|| [[17_13|17/13]] || 464.428 || 17 ||
|| 12\[[31edo]] || 464.516 || - ||
|| 7\[[18edo]] || 466.667 || - ||
|| 38/29 || 467.936 || 29 ||
 
===5-min6 - 732¢-760¢===
||~ Interval ||~ Cents Value ||~ Prime Limit (if applicable) ||
|| 5\[[Bohlen-Pierce]] || 731.521 || - ||
|| 29/19 || 732.064 || 29 ||
|| 11\[[18edo]] || 733.333 || - ||
|| 19\[[31edo]] || 735.484 || - ||
|| [[26_17|26/17]] || 735.572 || 17 ||
|| 49/75 || 736.931 || 7 ||
|| [[49_32|49/32]] || 737.652 || 7 ||
|| 72/47 || 738.403 || 47 ||
|| 23/15 || 740.006 || 23 ||
|| 66/43 || 741.755 || 43 ||
|| 43/28 || 742.692 || 43 ||
|| 13\[[21edo]] || 742.857 || - ||
|| 182/125 || 743.014 || 5 ||
|| 18\[[29edo]] || 744.828 || - ||
|| [[20_13|20/13]] || 745.786 || 13 ||
|| 37/24 || 749.389 || 37 ||
|| 5\[[8edo]] || 750.000 || - ||
|| 54/35 || 750.725 || 7 ||
|| [[17_11|17/11]] || 753.637 || 17 ||
|| 17\[[27edo]] || 755.556 || - ||
|| 48/31 || 756.919 || 31 ||
|| 12\[[19edo]] || 757.895 || - ||
|| 31/20 || 758.722 || 31 ||
|| 19\[[30edo]] || 760.000 || - ||
 
===Maj6-min7 - 940-960===
||~ Interval ||~ Cents Value ||~ Prime Limit (if applicable) ||
|| 18\[[23edo]] || 939.130 || - ||
|| 31/18 || 941.126 || 31 ||
|| 512/297 || 942.817 || 11 ||
|| 11\[[14edo]] || 942.857 || - ||
|| 50/29 || 943.050 || 29 ||
|| [[19_11|19/11]] || 946.195 || 19 ||
|| 140/81 || 947.320 || 7 ||
|| 15\[[19edo]] || 947.368 || - ||
|| 64/37 || 948.656 || 37 ||
|| 45/26 || 949.696 || 13 ||
|| 19\[[24edo]] || 950.000 || - ||
|| 23\[[29edo]] || 951.724 || - ||
|| [[26_15|26/15]] || 952.259 || 13 ||
|| 125/72 || 955.031 || 5 ||
|| 33/19 || 955.760 || 19 ||
|| 1001/576 || 956.762 || 13 ||
|| 40/23 || 958.039 || 23 ||
|| 47/27 || 959.642 || 47 ||
|| 4\[[5edo]] || 960.000 || - ||
|| 256/147 || 960.393 || 7 ||
 
 
See: [[Interval Category]], [[Gallery of Just Intervals]]</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;Interseptimal&lt;/title&gt;&lt;/head&gt;&lt;body&gt;In the theory of &lt;a class="wiki_link" href="/Margo%20Schulter"&gt;Margo Schulter&lt;/a&gt;, &lt;em&gt;interseptimal&lt;/em&gt; is a category of intervals which occupy regions intermediate between two septimal ratios such as &lt;a class="wiki_link" href="/8_7"&gt;8/7&lt;/a&gt; and &lt;a class="wiki_link" href="/7_6"&gt;7/6&lt;/a&gt;, or &lt;a class="wiki_link" href="/12_7"&gt;12/7&lt;/a&gt; and &lt;a class="wiki_link" href="/7_4"&gt;7/4&lt;/a&gt;. There are four interseptimal regions given below, with approximate cents ranges from Schulter's article &lt;a class="wiki_link_ext" href="http://www.bestii.com/%7Emschulter/IntervalSpectrumRegions.txt" rel="nofollow"&gt;Regions of the Interval Spectrum&lt;/a&gt;:&lt;br /&gt;
&lt;ol&gt;&lt;li&gt;Maj2-min3 -- intermediate between 8/7 and 7/6 -- 240¢-260¢&lt;/li&gt;&lt;li&gt;Maj3-4 -- intermediate between &lt;a class="wiki_link" href="/9_7"&gt;9/7&lt;/a&gt; and &lt;a class="wiki_link" href="/21_16"&gt;21/16&lt;/a&gt; -- 440¢-468¢&lt;/li&gt;&lt;li&gt;5-min6 -- intermediate between &lt;a class="wiki_link" href="/32_21"&gt;32/21&lt;/a&gt; and &lt;a class="wiki_link" href="/14_9"&gt;14/9&lt;/a&gt; -- 732¢-760¢&lt;/li&gt;&lt;li&gt;Maj6-min7 -- intermediate between 12/7 and 7/4 -- 940¢-960¢&lt;/li&gt;&lt;/ol&gt;&lt;br /&gt;
Interseptimal intervals are well-represented in &lt;a class="wiki_link" href="/24edo"&gt;24edo&lt;/a&gt; at 250¢, 450¢, 750¢ and 950¢. They also appear in &lt;a class="wiki_link" href="/19edo"&gt;19edo&lt;/a&gt; and &lt;a class="wiki_link" href="/29edo"&gt;29edo&lt;/a&gt;.&lt;br /&gt;
&lt;br /&gt;
As they fall in ambiguous zones between simpler categories, they are inevitably xenharmonic. This also makes them difficult to name: do we classify a 250-cent interval as a second, a third, both, or neither? One option is to give each region a distinct name (analogous to using the word &lt;em&gt;tritone&lt;/em&gt; rather than diminished fifth or augmented fourth). Possible names that could be used are:&lt;br /&gt;
&lt;br /&gt;
&lt;ol&gt;&lt;li&gt;240¢-260¢ -- semifourth -- an interval of this size is around half the size of a perfect fourth.&lt;/li&gt;&lt;li&gt;440¢-468¢ -- semisixth -- an interval of this size is around half the size of a major sixth.&lt;/li&gt;&lt;li&gt;732¢-760¢ -- semitenth -- an interval of this size is around half the size of a major tenth (i. e., compound major third). Another possible name is sesquifourth (since this is also about one and a half times the size of a perfect fourth).&lt;/li&gt;&lt;li&gt;940¢-960¢ -- semitwelfth -- an interval of this size is around half the size of a perfect twelfth (i e., a compound perfect fifth, or tritave). All even &lt;a class="wiki_link" href="/edt"&gt;edts&lt;/a&gt; have a semitwelfth of approximately 951 cents, analogous to the 600 cent tritone shared by all even edos.&lt;/li&gt;&lt;/ol&gt;&lt;br /&gt;
This makes notating these intervals very easy as long as we have an agreed-upon symbol for &amp;quot;semi&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
By analogy the tritone could also be called a semioctave, although the term tritone is so well-established that seems is little reason to change it now. A key difference is that the tritone is intermediate between two septimal ratios separated by a jubilisma (50:49), whereas the other interseptimal ranges listed above are between two septimal ratios separated by a slendro diesis (49:48).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:0:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc0"&gt;&lt;a name="x-Examples"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:0 --&gt;Examples&lt;/h2&gt;
Some interseptimal intervals in all four ranges, both just and tempered, are listed below.&lt;br /&gt;
&lt;br /&gt;
&lt;!-- ws:start:WikiTextHeadingRule:2:&amp;lt;h3&amp;gt; --&gt;&lt;h3 id="toc1"&gt;&lt;a name="x-Examples-Maj2-min3 - 240¢-260¢"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:2 --&gt;Maj2-min3 - 240¢-260¢&lt;/h3&gt;


&lt;table class="wiki_table"&gt;
{| class="wikitable"
    &lt;tr&gt;
|-
        &lt;th&gt;Interval&lt;br /&gt;
! | Interval
&lt;/th&gt;
! | Cents Value
        &lt;th&gt;Cents Value&lt;br /&gt;
! | Prime Limit (if applicable)
&lt;/th&gt;
|-
        &lt;th&gt;Prime Limit (if applicable)&lt;br /&gt;
| | 147/128
&lt;/th&gt;
| | 239.607
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;147/128&lt;br /&gt;
| | 1\[[5edo|5edo]]
&lt;/td&gt;
| | 240.000
        &lt;td&gt;239.607&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;7&lt;br /&gt;
| | 54/47
&lt;/td&gt;
| | 240.358
    &lt;/tr&gt;
| | 47
    &lt;tr&gt;
|-
        &lt;td&gt;1\&lt;a class="wiki_link" href="/5edo"&gt;5edo&lt;/a&gt;&lt;br /&gt;
| | 23/20
&lt;/td&gt;
| | 241.961
        &lt;td&gt;240.000&lt;br /&gt;
| | 23
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 1152/1001
&lt;/td&gt;
| | 243.238
    &lt;/tr&gt;
| | 13
    &lt;tr&gt;
|-
        &lt;td&gt;54/47&lt;br /&gt;
| | 38/33
&lt;/td&gt;
| | 244.240
        &lt;td&gt;240.358&lt;br /&gt;
| | 19
&lt;/td&gt;
|-
        &lt;td&gt;47&lt;br /&gt;
| | 144/125
&lt;/td&gt;
| | 244.969
    &lt;/tr&gt;
| | 5
    &lt;tr&gt;
|-
        &lt;td&gt;23/20&lt;br /&gt;
| | [[15/13|15/13]]
&lt;/td&gt;
| | 247.741
        &lt;td&gt;241.961&lt;br /&gt;
| | 13
&lt;/td&gt;
|-
        &lt;td&gt;23&lt;br /&gt;
| | 6\[[29edo|29edo]]
&lt;/td&gt;
| | 248.276
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;1152/1001&lt;br /&gt;
| | 5\[[24edo|24edo]]
&lt;/td&gt;
| | 250.000
        &lt;td&gt;243.238&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;13&lt;br /&gt;
| | 52/45
&lt;/td&gt;
| | 250.304
    &lt;/tr&gt;
| | 13
    &lt;tr&gt;
|-
        &lt;td&gt;38/33&lt;br /&gt;
| | 37/32
&lt;/td&gt;
| | 251.344
        &lt;td&gt;244.240&lt;br /&gt;
| | 37
&lt;/td&gt;
|-
        &lt;td&gt;19&lt;br /&gt;
| | 81/70
&lt;/td&gt;
| | 252.680
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;144/125&lt;br /&gt;
| | 4\[[19edo|19edo]]
&lt;/td&gt;
| | 252.632
        &lt;td&gt;244.969&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;5&lt;br /&gt;
| | [[22/19|22/19]]
&lt;/td&gt;
| | 253.805
    &lt;/tr&gt;
| | 19
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/15_13"&gt;15/13&lt;/a&gt;&lt;br /&gt;
| | 29/25
&lt;/td&gt;
| | 256.950
        &lt;td&gt;247.741&lt;br /&gt;
| | 29
&lt;/td&gt;
|-
        &lt;td&gt;13&lt;br /&gt;
| | 3\[[14edo|14edo]]
&lt;/td&gt;
| | 257.143
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;6\&lt;a class="wiki_link" href="/29edo"&gt;29edo&lt;/a&gt;&lt;br /&gt;
| | 297/256
&lt;/td&gt;
| | 257.183
        &lt;td&gt;248.276&lt;br /&gt;
| | 11
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 36/31
&lt;/td&gt;
| | 258.874
    &lt;/tr&gt;
| | 31
    &lt;tr&gt;
|-
        &lt;td&gt;5\&lt;a class="wiki_link" href="/24edo"&gt;24edo&lt;/a&gt;&lt;br /&gt;
| | 5\[[23edo|23edo]]
&lt;/td&gt;
| | 260.870
        &lt;td&gt;250.000&lt;br /&gt;
| | -
&lt;/td&gt;
|}
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;52/45&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;250.304&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;13&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;37/32&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;251.344&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;37&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;81/70&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;252.680&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;7&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;4\&lt;a class="wiki_link" href="/19edo"&gt;19edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;252.632&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/22_19"&gt;22/19&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;253.805&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;19&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;29/25&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;256.950&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;29&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;3\&lt;a class="wiki_link" href="/14edo"&gt;14edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;257.143&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;297/256&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;257.183&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;11&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;36/31&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;258.874&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;31&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;5\&lt;a class="wiki_link" href="/23edo"&gt;23edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;260.870&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
&lt;/table&gt;


&lt;br /&gt;
===Maj3-4 - 440-468===
&lt;!-- ws:start:WikiTextHeadingRule:4:&amp;lt;h3&amp;gt; --&gt;&lt;h3 id="toc2"&gt;&lt;a name="x-Examples-Maj3-4 - 440-468"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:4 --&gt;Maj3-4 - 440-468&lt;/h3&gt;


&lt;table class="wiki_table"&gt;
{| class="wikitable"
    &lt;tr&gt;
|-
        &lt;th&gt;Interval&lt;br /&gt;
! | Interval
&lt;/th&gt;
! | Cents Value
        &lt;th&gt;Cents Value&lt;br /&gt;
! | Prime Limit (if applicable)
&lt;/th&gt;
|-
        &lt;th&gt;Prime Limit (if applicable)&lt;br /&gt;
| | 5\[[88cET|88cET]] or 11\[[30edo|30edo]]
&lt;/th&gt;
| | 440.000
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;5\&lt;a class="wiki_link" href="/88cET"&gt;88cET&lt;/a&gt; or 11\&lt;a class="wiki_link" href="/30edo"&gt;30edo&lt;/a&gt;&lt;br /&gt;
| | 40/31
&lt;/td&gt;
| | 441.278
        &lt;td&gt;440.000&lt;br /&gt;
| | 31
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 7\[[19edo|19edo]]
&lt;/td&gt;
| | 442.015
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;40/31&lt;br /&gt;
| | 31/24
&lt;/td&gt;
| | 443.081
        &lt;td&gt;441.278&lt;br /&gt;
| | 31
&lt;/td&gt;
|-
        &lt;td&gt;31&lt;br /&gt;
| | 10\[[27edo|27edo]]
&lt;/td&gt;
| | 444.444
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;7\&lt;a class="wiki_link" href="/19edo"&gt;19edo&lt;/a&gt;&lt;br /&gt;
| | [[22/17|22/17]]
&lt;/td&gt;
| | 446.363
        &lt;td&gt;442.015&lt;br /&gt;
| | 17
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | [[35/27|35/27]]
&lt;/td&gt;
| | 449.275
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;31/24&lt;br /&gt;
| | 3\[[8edo|8edo]]
&lt;/td&gt;
| | 450.000
        &lt;td&gt;443.081&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;31&lt;br /&gt;
| | 48/37
&lt;/td&gt;
| | 450.611
    &lt;/tr&gt;
| | 37
    &lt;tr&gt;
|-
        &lt;td&gt;10\&lt;a class="wiki_link" href="/27edo"&gt;27edo&lt;/a&gt;&lt;br /&gt;
| | [[13/10|13/10]]
&lt;/td&gt;
| | 454.214
        &lt;td&gt;444.444&lt;br /&gt;
| | 13
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 11\[[29edo|29edo]]
&lt;/td&gt;
| | 455.172
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/22_17"&gt;22/17&lt;/a&gt;&lt;br /&gt;
| | 125/96
&lt;/td&gt;
| | 456.986
        &lt;td&gt;446.363&lt;br /&gt;
| | 5
&lt;/td&gt;
|-
        &lt;td&gt;17&lt;br /&gt;
| | 8\[[21edo|21edo]]
&lt;/td&gt;
| | 457.143
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/35_27"&gt;35/27&lt;/a&gt;&lt;br /&gt;
| | 56/43
&lt;/td&gt;
| | 457.308
        &lt;td&gt;449.275&lt;br /&gt;
| | 43
&lt;/td&gt;
|-
        &lt;td&gt;7&lt;br /&gt;
| | 43/33
&lt;/td&gt;
| | 458.245
    &lt;/tr&gt;
| | 43
    &lt;tr&gt;
|-
        &lt;td&gt;3\&lt;a class="wiki_link" href="/8edo"&gt;8edo&lt;/a&gt;&lt;br /&gt;
| | 30/23
&lt;/td&gt;
| | 459.994
        &lt;td&gt;450.000&lt;br /&gt;
| | 23
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 5\[[13edo|13edo]]
&lt;/td&gt;
| | 461.538
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;48/37&lt;br /&gt;
| | 47/36
&lt;/td&gt;
| | 461.597
        &lt;td&gt;450.611&lt;br /&gt;
| | 47
&lt;/td&gt;
|-
        &lt;td&gt;37&lt;br /&gt;
| | [[64/49|64/49]]
&lt;/td&gt;
| | 462.348
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/13_10"&gt;13/10&lt;/a&gt;&lt;br /&gt;
| | 98/75
&lt;/td&gt;
| | 463.069
        &lt;td&gt;454.214&lt;br /&gt;
| | 7
&lt;/td&gt;
|-
        &lt;td&gt;13&lt;br /&gt;
| | [[17/13|17/13]]
&lt;/td&gt;
| | 464.428
    &lt;/tr&gt;
| | 17
    &lt;tr&gt;
|-
        &lt;td&gt;11\&lt;a class="wiki_link" href="/29edo"&gt;29edo&lt;/a&gt;&lt;br /&gt;
| | 12\[[31edo|31edo]]
&lt;/td&gt;
| | 464.516
        &lt;td&gt;455.172&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 7\[[18edo|18edo]]
&lt;/td&gt;
| | 466.667
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;125/96&lt;br /&gt;
| | 38/29
&lt;/td&gt;
| | 467.936
        &lt;td&gt;456.986&lt;br /&gt;
| | 29
&lt;/td&gt;
|}
        &lt;td&gt;5&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;8\&lt;a class="wiki_link" href="/21edo"&gt;21edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;457.143&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;56/43&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;457.308&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;43&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;43/33&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;458.245&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;43&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;30/23&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;459.994&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;23&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;5\&lt;a class="wiki_link" href="/13edo"&gt;13edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;461.538&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;47/36&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;461.597&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;47&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/64_49"&gt;64/49&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;462.348&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;7&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;98/75&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;463.069&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;7&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/17_13"&gt;17/13&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;464.428&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;17&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;12\&lt;a class="wiki_link" href="/31edo"&gt;31edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;464.516&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;7\&lt;a class="wiki_link" href="/18edo"&gt;18edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;466.667&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;38/29&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;467.936&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;29&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
&lt;/table&gt;


&lt;br /&gt;
===5-min6 - 732¢-760¢===
&lt;!-- ws:start:WikiTextHeadingRule:6:&amp;lt;h3&amp;gt; --&gt;&lt;h3 id="toc3"&gt;&lt;a name="x-Examples-5-min6 - 732¢-760¢"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:6 --&gt;5-min6 - 732¢-760¢&lt;/h3&gt;


&lt;table class="wiki_table"&gt;
{| class="wikitable"
    &lt;tr&gt;
|-
        &lt;th&gt;Interval&lt;br /&gt;
! | Interval
&lt;/th&gt;
! | Cents Value
        &lt;th&gt;Cents Value&lt;br /&gt;
! | Prime Limit (if applicable)
&lt;/th&gt;
|-
        &lt;th&gt;Prime Limit (if applicable)&lt;br /&gt;
| | 5\[[Bohlen-Pierce|Bohlen-Pierce]]
&lt;/th&gt;
| | 731.521
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;5\&lt;a class="wiki_link" href="/Bohlen-Pierce"&gt;Bohlen-Pierce&lt;/a&gt;&lt;br /&gt;
| | 29/19
&lt;/td&gt;
| | 732.064
        &lt;td&gt;731.521&lt;br /&gt;
| | 29
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 11\[[18edo|18edo]]
&lt;/td&gt;
| | 733.333
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;29/19&lt;br /&gt;
| | 19\[[31edo|31edo]]
&lt;/td&gt;
| | 735.484
        &lt;td&gt;732.064&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;29&lt;br /&gt;
| | [[26/17|26/17]]
&lt;/td&gt;
| | 735.572
    &lt;/tr&gt;
| | 17
    &lt;tr&gt;
|-
        &lt;td&gt;11\&lt;a class="wiki_link" href="/18edo"&gt;18edo&lt;/a&gt;&lt;br /&gt;
| | 49/75
&lt;/td&gt;
| | 736.931
        &lt;td&gt;733.333&lt;br /&gt;
| | 7
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | [[49/32|49/32]]
&lt;/td&gt;
| | 737.652
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;19\&lt;a class="wiki_link" href="/31edo"&gt;31edo&lt;/a&gt;&lt;br /&gt;
| | 72/47
&lt;/td&gt;
| | 738.403
        &lt;td&gt;735.484&lt;br /&gt;
| | 47
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 23/15
&lt;/td&gt;
| | 740.006
    &lt;/tr&gt;
| | 23
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/26_17"&gt;26/17&lt;/a&gt;&lt;br /&gt;
| | 66/43
&lt;/td&gt;
| | 741.755
        &lt;td&gt;735.572&lt;br /&gt;
| | 43
&lt;/td&gt;
|-
        &lt;td&gt;17&lt;br /&gt;
| | 43/28
&lt;/td&gt;
| | 742.692
    &lt;/tr&gt;
| | 43
    &lt;tr&gt;
|-
        &lt;td&gt;49/75&lt;br /&gt;
| | 13\[[21edo|21edo]]
&lt;/td&gt;
| | 742.857
        &lt;td&gt;736.931&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;7&lt;br /&gt;
| | 182/125
&lt;/td&gt;
| | 743.014
    &lt;/tr&gt;
| | 5
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/49_32"&gt;49/32&lt;/a&gt;&lt;br /&gt;
| | 18\[[29edo|29edo]]
&lt;/td&gt;
| | 744.828
        &lt;td&gt;737.652&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;7&lt;br /&gt;
| | [[20/13|20/13]]
&lt;/td&gt;
| | 745.786
    &lt;/tr&gt;
| | 13
    &lt;tr&gt;
|-
        &lt;td&gt;72/47&lt;br /&gt;
| | 37/24
&lt;/td&gt;
| | 749.389
        &lt;td&gt;738.403&lt;br /&gt;
| | 37
&lt;/td&gt;
|-
        &lt;td&gt;47&lt;br /&gt;
| | 5\[[8edo|8edo]]
&lt;/td&gt;
| | 750.000
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;23/15&lt;br /&gt;
| | 54/35
&lt;/td&gt;
| | 750.725
        &lt;td&gt;740.006&lt;br /&gt;
| | 7
&lt;/td&gt;
|-
        &lt;td&gt;23&lt;br /&gt;
| | [[17/11|17/11]]
&lt;/td&gt;
| | 753.637
    &lt;/tr&gt;
| | 17
    &lt;tr&gt;
|-
        &lt;td&gt;66/43&lt;br /&gt;
| | 17\[[27edo|27edo]]
&lt;/td&gt;
| | 755.556
        &lt;td&gt;741.755&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;43&lt;br /&gt;
| | 48/31
&lt;/td&gt;
| | 756.919
    &lt;/tr&gt;
| | 31
    &lt;tr&gt;
|-
        &lt;td&gt;43/28&lt;br /&gt;
| | 12\[[19edo|19edo]]
&lt;/td&gt;
| | 757.895
        &lt;td&gt;742.692&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;43&lt;br /&gt;
| | 31/20
&lt;/td&gt;
| | 758.722
    &lt;/tr&gt;
| | 31
    &lt;tr&gt;
|-
        &lt;td&gt;13\&lt;a class="wiki_link" href="/21edo"&gt;21edo&lt;/a&gt;&lt;br /&gt;
| | 19\[[30edo|30edo]]
&lt;/td&gt;
| | 760.000
        &lt;td&gt;742.857&lt;br /&gt;
| | -
&lt;/td&gt;
|}
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;182/125&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;743.014&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;5&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;18\&lt;a class="wiki_link" href="/29edo"&gt;29edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;744.828&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/20_13"&gt;20/13&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;745.786&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;13&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;37/24&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;749.389&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;37&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;5\&lt;a class="wiki_link" href="/8edo"&gt;8edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;750.000&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;54/35&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;750.725&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;7&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/17_11"&gt;17/11&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;753.637&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;17&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;17\&lt;a class="wiki_link" href="/27edo"&gt;27edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;755.556&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;48/31&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;756.919&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;31&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;12\&lt;a class="wiki_link" href="/19edo"&gt;19edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;757.895&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;31/20&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;758.722&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;31&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;19\&lt;a class="wiki_link" href="/30edo"&gt;30edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;760.000&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
&lt;/table&gt;


&lt;br /&gt;
===Maj6-min7 - 940-960===
&lt;!-- ws:start:WikiTextHeadingRule:8:&amp;lt;h3&amp;gt; --&gt;&lt;h3 id="toc4"&gt;&lt;a name="x-Examples-Maj6-min7 - 940-960"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:8 --&gt;Maj6-min7 - 940-960&lt;/h3&gt;


&lt;table class="wiki_table"&gt;
{| class="wikitable"
    &lt;tr&gt;
|-
        &lt;th&gt;Interval&lt;br /&gt;
! | Interval
&lt;/th&gt;
! | Cents Value
        &lt;th&gt;Cents Value&lt;br /&gt;
! | Prime Limit (if applicable)
&lt;/th&gt;
|-
        &lt;th&gt;Prime Limit (if applicable)&lt;br /&gt;
| | 18\[[23edo|23edo]]
&lt;/th&gt;
| | 939.130
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;18\&lt;a class="wiki_link" href="/23edo"&gt;23edo&lt;/a&gt;&lt;br /&gt;
| | 31/18
&lt;/td&gt;
| | 941.126
        &lt;td&gt;939.130&lt;br /&gt;
| | 31
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 512/297
&lt;/td&gt;
| | 942.817
    &lt;/tr&gt;
| | 11
    &lt;tr&gt;
|-
        &lt;td&gt;31/18&lt;br /&gt;
| | 11\[[14edo|14edo]]
&lt;/td&gt;
| | 942.857
        &lt;td&gt;941.126&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;31&lt;br /&gt;
| | 50/29
&lt;/td&gt;
| | 943.050
    &lt;/tr&gt;
| | 29
    &lt;tr&gt;
|-
        &lt;td&gt;512/297&lt;br /&gt;
| | [[19/11|19/11]]
&lt;/td&gt;
| | 946.195
        &lt;td&gt;942.817&lt;br /&gt;
| | 19
&lt;/td&gt;
|-
        &lt;td&gt;11&lt;br /&gt;
| | 140/81
&lt;/td&gt;
| | 947.320
    &lt;/tr&gt;
| | 7
    &lt;tr&gt;
|-
        &lt;td&gt;11\&lt;a class="wiki_link" href="/14edo"&gt;14edo&lt;/a&gt;&lt;br /&gt;
| | 15\[[19edo|19edo]]
&lt;/td&gt;
| | 947.368
        &lt;td&gt;942.857&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 64/37
&lt;/td&gt;
| | 948.656
    &lt;/tr&gt;
| | 37
    &lt;tr&gt;
|-
        &lt;td&gt;50/29&lt;br /&gt;
| | 45/26
&lt;/td&gt;
| | 949.696
        &lt;td&gt;943.050&lt;br /&gt;
| | 13
&lt;/td&gt;
|-
        &lt;td&gt;29&lt;br /&gt;
| | 19\[[24edo|24edo]]
&lt;/td&gt;
| | 950.000
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;&lt;a class="wiki_link" href="/19_11"&gt;19/11&lt;/a&gt;&lt;br /&gt;
| | 23\[[29edo|29edo]]
&lt;/td&gt;
| | 951.724
        &lt;td&gt;946.195&lt;br /&gt;
| | -
&lt;/td&gt;
|-
        &lt;td&gt;19&lt;br /&gt;
| | [[26/15|26/15]]
&lt;/td&gt;
| | 952.259
    &lt;/tr&gt;
| | 13
    &lt;tr&gt;
|-
        &lt;td&gt;140/81&lt;br /&gt;
| | 125/72
&lt;/td&gt;
| | 955.031
        &lt;td&gt;947.320&lt;br /&gt;
| | 5
&lt;/td&gt;
|-
        &lt;td&gt;7&lt;br /&gt;
| | 33/19
&lt;/td&gt;
| | 955.760
    &lt;/tr&gt;
| | 19
    &lt;tr&gt;
|-
        &lt;td&gt;15\&lt;a class="wiki_link" href="/19edo"&gt;19edo&lt;/a&gt;&lt;br /&gt;
| | 1001/576
&lt;/td&gt;
| | 956.762
        &lt;td&gt;947.368&lt;br /&gt;
| | 13
&lt;/td&gt;
|-
        &lt;td&gt;-&lt;br /&gt;
| | 40/23
&lt;/td&gt;
| | 958.039
    &lt;/tr&gt;
| | 23
    &lt;tr&gt;
|-
        &lt;td&gt;64/37&lt;br /&gt;
| | 47/27
&lt;/td&gt;
| | 959.642
        &lt;td&gt;948.656&lt;br /&gt;
| | 47
&lt;/td&gt;
|-
        &lt;td&gt;37&lt;br /&gt;
| | 4\[[5edo|5edo]]
&lt;/td&gt;
| | 960.000
    &lt;/tr&gt;
| | -
    &lt;tr&gt;
|-
        &lt;td&gt;45/26&lt;br /&gt;
| | 256/147
&lt;/td&gt;
| | 960.393
        &lt;td&gt;949.696&lt;br /&gt;
| | 7
&lt;/td&gt;
|}
        &lt;td&gt;13&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;19\&lt;a class="wiki_link" href="/24edo"&gt;24edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;950.000&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;23\&lt;a class="wiki_link" href="/29edo"&gt;29edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;951.724&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;&lt;a class="wiki_link" href="/26_15"&gt;26/15&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;952.259&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;13&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;125/72&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;955.031&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;5&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;33/19&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;955.760&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;19&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;1001/576&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;956.762&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;13&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;40/23&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;958.039&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;23&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;47/27&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;959.642&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;47&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;4\&lt;a class="wiki_link" href="/5edo"&gt;5edo&lt;/a&gt;&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;960.000&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;-&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
    &lt;tr&gt;
        &lt;td&gt;256/147&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;960.393&lt;br /&gt;
&lt;/td&gt;
        &lt;td&gt;7&lt;br /&gt;
&lt;/td&gt;
    &lt;/tr&gt;
&lt;/table&gt;


&lt;br /&gt;
See: [[interval_category|Interval Category]], [[Gallery_of_Just_Intervals|Gallery of Just Intervals]]      [[Category:interseptimal]]
&lt;br /&gt;
[[Category:interval_category]]
See: &lt;a class="wiki_link" href="/Interval%20Category"&gt;Interval Category&lt;/a&gt;, &lt;a class="wiki_link" href="/Gallery%20of%20Just%20Intervals"&gt;Gallery of Just Intervals&lt;/a&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>

Revision as of 00:00, 17 July 2018

In the theory of Margo Schulter, interseptimal is a category of intervals which occupy regions intermediate between two septimal ratios such as 8/7 and 7/6, or 12/7 and 7/4. There are four interseptimal regions given below, with approximate cents ranges from Schulter's article Regions of the Interval Spectrum:

  1. Maj2-min3 -- intermediate between 8/7 and 7/6 -- 240¢-260¢
  2. Maj3-4 -- intermediate between 9/7 and 21/16 -- 440¢-468¢
  3. 5-min6 -- intermediate between 32/21 and 14/9 -- 732¢-760¢
  4. Maj6-min7 -- intermediate between 12/7 and 7/4 -- 940¢-960¢

Interseptimal intervals are well-represented in 24edo at 250¢, 450¢, 750¢ and 950¢. They also appear in 19edo and 29edo.

As they fall in ambiguous zones between simpler categories, they are inevitably xenharmonic. This also makes them difficult to name: do we classify a 250-cent interval as a second, a third, both, or neither? One option is to give each region a distinct name (analogous to using the word tritone rather than diminished fifth or augmented fourth). Possible names that could be used are:

  1. 240¢-260¢ -- semifourth -- an interval of this size is around half the size of a perfect fourth.
  2. 440¢-468¢ -- semisixth -- an interval of this size is around half the size of a major sixth.
  3. 732¢-760¢ -- semitenth -- an interval of this size is around half the size of a major tenth (i. e., compound major third). Another possible name is sesquifourth (since this is also about one and a half times the size of a perfect fourth).
  4. 940¢-960¢ -- semitwelfth -- an interval of this size is around half the size of a perfect twelfth (i e., a compound perfect fifth, or tritave). All even edts have a semitwelfth of approximately 951 cents, analogous to the 600 cent tritone shared by all even edos.

This makes notating these intervals very easy as long as we have an agreed-upon symbol for "semi".

By analogy the tritone could also be called a semioctave, although the term tritone is so well-established that seems is little reason to change it now. A key difference is that the tritone is intermediate between two septimal ratios separated by a jubilisma (50:49), whereas the other interseptimal ranges listed above are between two septimal ratios separated by a slendro diesis (49:48).

Examples

Some interseptimal intervals in all four ranges, both just and tempered, are listed below.

Maj2-min3 - 240¢-260¢

Interval Cents Value Prime Limit (if applicable)
147/128 239.607 7
1\5edo 240.000 -
54/47 240.358 47
23/20 241.961 23
1152/1001 243.238 13
38/33 244.240 19
144/125 244.969 5
15/13 247.741 13
6\29edo 248.276 -
5\24edo 250.000 -
52/45 250.304 13
37/32 251.344 37
81/70 252.680 7
4\19edo 252.632 -
22/19 253.805 19
29/25 256.950 29
3\14edo 257.143 -
297/256 257.183 11
36/31 258.874 31
5\23edo 260.870 -

Maj3-4 - 440-468

Interval Cents Value Prime Limit (if applicable)
5\88cET or 11\30edo 440.000 -
40/31 441.278 31
7\19edo 442.015 -
31/24 443.081 31
10\27edo 444.444 -
22/17 446.363 17
35/27 449.275 7
3\8edo 450.000 -
48/37 450.611 37
13/10 454.214 13
11\29edo 455.172 -
125/96 456.986 5
8\21edo 457.143 -
56/43 457.308 43
43/33 458.245 43
30/23 459.994 23
5\13edo 461.538 -
47/36 461.597 47
64/49 462.348 7
98/75 463.069 7
17/13 464.428 17
12\31edo 464.516 -
7\18edo 466.667 -
38/29 467.936 29

5-min6 - 732¢-760¢

Interval Cents Value Prime Limit (if applicable)
5\Bohlen-Pierce 731.521 -
29/19 732.064 29
11\18edo 733.333 -
19\31edo 735.484 -
26/17 735.572 17
49/75 736.931 7
49/32 737.652 7
72/47 738.403 47
23/15 740.006 23
66/43 741.755 43
43/28 742.692 43
13\21edo 742.857 -
182/125 743.014 5
18\29edo 744.828 -
20/13 745.786 13
37/24 749.389 37
5\8edo 750.000 -
54/35 750.725 7
17/11 753.637 17
17\27edo 755.556 -
48/31 756.919 31
12\19edo 757.895 -
31/20 758.722 31
19\30edo 760.000 -

Maj6-min7 - 940-960

Interval Cents Value Prime Limit (if applicable)
18\23edo 939.130 -
31/18 941.126 31
512/297 942.817 11
11\14edo 942.857 -
50/29 943.050 29
19/11 946.195 19
140/81 947.320 7
15\19edo 947.368 -
64/37 948.656 37
45/26 949.696 13
19\24edo 950.000 -
23\29edo 951.724 -
26/15 952.259 13
125/72 955.031 5
33/19 955.760 19
1001/576 956.762 13
40/23 958.039 23
47/27 959.642 47
4\5edo 960.000 -
256/147 960.393 7

See: Interval Category, Gallery of Just Intervals