4096/4095: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = minisma, minic comma | |||
| Color name = s3urg1, sathurugu 1sn, <br>Sathurugu comma | |||
| Comma = yes | |||
| Name = | |||
| Color name = sathurugu comma | |||
| | |||
}} | }} | ||
'''4096/4095''', the '''minisma''' or '''minic comma''', also described as the ''tridecimal schisma'' or ''tridecimal schismina''<ref>[https://sagittal.org/sagittal.pdf Sagittal – A Microtonal Notation System] by [[George Secor|George D. Secor]] and [[Dave Keenan|David C. Keenan]]</ref>, is an [[unnoticeable comma|unnoticeable]] [[13-limit]] [[superparticular]] [[comma]] of about 0.42 cents. It is the difference between the [[64/63|septimal comma (64/63)]] and the [[65/64|wilsorma (65/64)]], and between the [[36/35|septimal quartertone (36/35)]] and the [[1053/1024|tridecimal quartertone (1053/1024)]]. It is also a [[Mersenne comma]]. | |||
It factors into ([[6656/6655]])⋅([[10648/10647]]). It is also the smallest superparticular ratio in the [[2.3.5.7.13 subgroup]]. | |||
== Temperaments == | |||
[[Tempering out]] this comma in the full 13-limit defines the rank-5 '''minismic''' temperament, or in the 2.3.5.7.13 subgroup, the rank-4 '''minic''' temperament. In either case, it equates the tridecimal quartertone with the septimal one, and enables the [[minismic chords]], the [[essentially tempered chord]]s in the [[21-odd-limit]]. You may find a list of good [[equal temperament]]s that [[support]] these temperaments below. | |||
The | === Minic === | ||
[[Subgroup]]: 2.3.5.7.13 | |||
[[Mapping]]: <br> | |||
{| class="right-all" | |||
|- | |||
| [⟨ || 1 || 0 || 0 || 0 || 0 || 12 || ], | |||
|- | |||
| ⟨ || 0 || 1 || 0 || 0 || 0 || -2 || ], | |||
|- | |||
| ⟨ || 0 || 0 || 1 || 0 || 0 || -1 || ], | |||
|- | |||
| ⟨ || 0 || 0 || 0 || 1 || 0 || -1 || ], | |||
|} | |||
: mapping generators: ~2, ~3, ~5, ~7 | |||
[[Optimal tuning]]s: | |||
: [[WE]]: ~2 = 1199.9720{{c}}, ~3/2 = 701.9948{{c}}, ~5/4 = 386.3824{{c}}, ~7/4 = 968.9004{{c}} | |||
: [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 702.0114{{c}}, ~5/4 = 386.3886{{c}}, ~7/4 = 968.9218{{c}} | |||
{{Optimal ET sequence|legend=1| 31, 41, 46, 53, 77, 84, 87, 99, 118, 130, 140, 171, 224, 270, 441, 935, 1376, 1506, 1947, 2441, 2882, 5323f, 6699df, 8205cdf, 9140cdf, 9581cdff, 12022bcdff, 14904bcddfff, 19957bccdddffff }} | |||
[[Badness]] (Sintel): 0.135 | |||
=== Minismic === | |||
[[Subgroup]]: 2.3.5.7.11.13 | |||
[[Mapping]]: <br> | |||
{| class="right-all" | |||
|- | |||
| [⟨ || 1 || 0 || 0 || 0 || 0 || 12 || ], | |||
|- | |||
| ⟨ || 0 || 1 || 0 || 0 || 0 || -2 || ], | |||
|- | |||
| ⟨ || 0 || 0 || 1 || 0 || 0 || -1 || ], | |||
|- | |||
| ⟨ || 0 || 0 || 0 || 1 || 0 || -1 || ], | |||
|- | |||
| ⟨ || 0 || 0 || 0 || 0 || 1 || 0 || ]] | |||
|} | |||
: mapping generators: ~2, ~3, ~5, ~7, ~11 | |||
[[Optimal tuning]]s: | |||
: [[WE]]: ~2 = 1199.9720{{c}}, ~3/2 = 701.9948{{c}}, ~5/4 = 386.3824{{c}}, ~7/4 = 968.9004{{c}}, ~11/8 = 551.4020{{c}} | |||
: [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 702.0114{{c}}, ~5/4 = 386.3886{{c}}, ~7/4 = 968.9218{{c}}, ~11/8 = 551.3984{{c}} | |||
{{Optimal ET sequence|legend=1| 31, 41, 46, 53, 77, 84, 87, 118, 130, 183, 217, 224, 270, 494, 764, 935, 1012, 1236, 1506, 3236, 3323, 3817, 5323f, 9140cdef, 14463bcddeefff, 17786bccddeeefff }} | |||
[[Badness]] (Sintel): 0.479 | |||
== Etymology == | |||
The names ''minisma'' and ''minic comma'' were given by [[Flora Canou]] in 2026 after the general interval size measure knowns as the ''[[mina]]'', because 4096/4095 is the default comma represented by a mina (or three [[tina]]s) in [[Sagittal notation]]. ''Mina'' is a clipping of ''schismina'', which describes a range of commas in Sagittal notation, and in turn comes from ''schisma'' (the interval region) + -in (diminutive suffix). [[Eufalesio]] proposed ''trinyblisma'', for the denominator is the largest integer that can be written in 3 {{w|nibble|nybbles}} (1.5 bytes). | |||
== See also == | == See also == | ||
* [[List of superparticular intervals]] | * [[List of superparticular intervals]] | ||
* [[Tridecimal schisma]] (disambiguation page) | |||
== References == | |||
<references/> | |||
[[Category: | [[Category:Minismic]] | ||
[[Category:Mina]] | [[Category:Mina]] | ||
[[Category:Commas named after their interval size]] | |||