5040edo: Difference between revisions

Fredg999 category edits (talk | contribs)
Eliora (talk | contribs)
added contorsion for harmonics upwards to 67th, for now just the "tempered commas" section since I can't fill in the whole table
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{{Infobox ET}}
{{Infobox ET}}
'''5040 equal divisions of the octave''' ('''5040edo''') divides the octave into steps of 238 millicents each, or exactly 5/21 of a [[cent]].
{{EDO intro|5040}}


== Theory ==
== Theory ==
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There's an interesting property that arises in a stricter subgroup, 2.7.13.17.29.31.41.47.61.67. In this subgroup, it makes a rank two temperament with 1111edo (1111 & 5040), which brings two notable number classes together - a repunit and a highly composite number.
There's an interesting property that arises in a stricter subgroup, 2.7.13.17.29.31.41.47.61.67. In this subgroup, it makes a rank two temperament with 1111edo (1111 & 5040), which brings two notable number classes together - a repunit and a highly composite number.
Using the patent val, 5040edo tempers out [[9801/9800]] in the 11-limit.


=== Contorsion table ===
=== Contorsion table ===
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|4
|4
|1260edo
|1260edo
|-
|31
|21
|[[240edo]]
|-
|37
|48
|[[105edo]]
|-
|41
|2
|[[2520edo]]
|-
|43
|12
|[[420edo]]
|-
|47
|5
|[[1008edo]]
|-
|53
|3
|[[1680edo]]
|-
|59
|3
|[[1680edo]]
|-
|61
|1
|5040edo (maps to a coprime step)
|-
|67
|9
|[[560edo]]
|}
|}


== Regular temperament properties ==
== Regular temperament properties ==
Using the patent val, 5040edo tempers out [[9801/9800]] in the 11-limit.


A comma basis for the 2.3.7.13.17 subgroup is [[5832/5831]], [[31213/31212]], {{monzo|-44 28 5 -5 1}}, {{monzo|-50  9 -6 12  2}}.
=== Tempered commas ===
2.3.7 subgroup: {{Monzo|81  41 -52}}, {{Monzo|-110 119 -28}}
 
2.3.7.13 subgroup: {{monzo|8 15 -10 -1}}, {{monzo|-41 34  2 -5}}, {{monzo|-52  6  -2 13}}
 
2.3.7.13.17 subgroup: [[5832/5831]], [[31213/31212]], {{monzo|-44 28 5 -5 1}}, {{monzo|-50  9 -6 12  2}}.
 
2.3.7.13.17.23 subgroup: 5832/5831, 213003/212992, 279888/279841, {{Monzo|-25 -3 -9 14 3 -2}}, {{Monzo|-27 -6 -5 15 1 -2}}
 
2.3.7.13.17.23.29 subgroup: 4914/4913, 5832/5831, 107406/107387, 116928/116909, 3234573/3233984, 2871098559212689/2870492063072256


== Scales ==
== Scales ==