Septimal enneadeca: Difference between revisions

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m See also: correction
"Septimal enneadecal" can't be used to contrast "7-limit enneadecal", contracted to "septienneadecal"
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{{Infobox Interval
{{Infobox Interval
| Monzo = -37 57 0 -19
| Monzo = -37 57 0 -19
| Name = septimal enneadeca
| Name = septimal enneadeca, septienneadeca
| Comma = yes
| Comma = yes
}}
}}
{{Monzo| -37 57 0 -19 }}, the '''septimal enneadeca''' or '''19-tone-comma''', is an interval of 2.816 cents which is the amount by which nineteen [[28/27]]'s fall short of an octave, that is, 2/(28/27)<sup>19</sup>.
The '''septimal enneadeca''' or '''septienneadeca''' ({{monzo|legend=1| -37 57 0 -19 }}), is an interval of 2.816 [[cent]]s which is the amount by which nineteen [[28/27]]'s fall short of an octave, that is, 2/(28/27)<sup>19</sup>.


== Temperaments ==
== Temperaments ==
=== Septimal enneadecal ===
=== Septienneadecal ===
This temperament is a no-5's temperament in the 7-limit; contrast with 7-limit [[enneadecal]], which adds a mapping for 5 by tempering the [[enneadeca]].
This temperament is a no-5's temperament in the 7-limit; contrast with 7-limit [[enneadecal]], which adds a mapping for 5 by tempering out the [[enneadeca]].


[[Subgroup]]: 2.3.7
[[Subgroup]]: 2.3.7


Mapping: {{Mapping| 19 0 -37 | 0 1 3}}
{{Mapping|legend=1| 19 0 -37 | 0 1 3 }}


[[CTE]] generators: ~28/27 = 1\19, ~3 = 1901.906
: mapping generators: ~28/27, ~3


[[Patent val]] EDOs < 400: 19, 152, 171, 190, 323
[[Optimal tuning]] ([[CTE]]): ~28/27 = 1\19, ~3/2 = 701.906 (~{{monzo| 14 -23 0 8 }} = 6.969)


==== [[Enneadecal]] ====
{{Optimal ET sequence|legend=1| 19, …, 152, 171, 494, 665, 836, 1007, 1843, 2850, 6707, 9557 }}
[[Subgroup]]: 2.3.5.7


{{Mapping|legend=1| 19 0 14 -37 | 0 1 1 3 }}
[[Badness]]: 0.00146


See: [[Enneadecal]]
==== Enneadecal ====
See [[Ragismic microtemperaments #Enneadecal]].


== See also ==
== See also ==