Meter: Difference between revisions

BudjarnLambeth (talk | contribs)
mNo edit summary
- data (addressed in the misc. page)
 
Line 8: Line 8:


== Temperaments ==
== Temperaments ==
Tempering it out leads to the '''metric temperament''', which splits the syntonic comma into three equal parts, one for the septimal kleisma, and two for the [[126/125|septimal semicomma]]. It is also tempered out in [[septimal meantone]], but this is a trivial case since 81/80 and 225/224 are both tempered out.
[[Tempering out]] this comma leads to the [[metric]] temperament, which splits the syntonic comma into three equal parts, one for the septimal kleisma, and two for the [[126/125|septimal semicomma]]. It is also tempered out in [[septimal meantone]], but this is a trivial case since 81/80 and 225/224 are both tempered out.


See [[metric microtemperaments]] for a collection of rank-2 temperaments where it is tempered out.  
See [[Metric microtemperaments]] for a collection of rank-2 temperaments where it is tempered out.  
 
=== Metric (31 & 171 & 323) ===
[[Subgroup]]: 2.3.5.7
 
[[Comma list]]: 703125/702464
 
{{Mapping|legend=1| 1 0 2 1 | 0 1 1 3 | 0 0 -3 -7 }}
 
[[Optimal tuning]] ([[POTE]]): ~3/2 = 701.8766, ~75/56 = 505.2613
 
{{Optimal ET sequence|legend=1| 12, 19, 31, 81, 90, 102d, 109, 121, 140, 152, 171, 665, 836, 1007, 2185, 3192c }}
 
[[Badness]]: 0.1498 × 10<sup>-3</sup>


== Etymology ==
== Etymology ==
This comma was first named as ''tertiaendec'' by [[Gene Ward Smith]] in 2005 as a contraction of ''[[tertiaseptal]]'' and ''[[enneadecal]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>. It is not clear how it later became ''meter'' in 2010<ref>See [https://en.xen.wiki/index.php?title=Small_comma&oldid=13579 Revision as of 18:42, 1 June 2010 by Wikispaces>genewardsmith].</ref>.
This comma was first named as ''tertiaendec'' by [[Gene Ward Smith]] in 2005 as a contraction of ''[[tertiaseptal]]'' and ''[[enneadecal]]''<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12900.html Yahoo! Tuning Group | ''Seven limit comma names from pairs of temperament names'']</ref>. It is not clear how it later became ''meter'' in 2010<ref>See [https://en.xen.wiki/index.php?title=Small_comma&oldid=13579 Revision as of 18:42, 1 June 2010 by Wikispaces>genewardsmith].</ref>.


== Notes ==
== References ==


[[Category:Metric (temperament)]]
[[Category:Metric (temperament)]]
[[Category:Commas with unknown etymology]]
[[Category:Commas with unknown etymology]]