Chalmersia: Difference between revisions
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changed the phrase "but these are probably mistakes" to "though at least some of these are mistakes" as judging from from some of the archived conversations on this wiki about this comma, it seems that some people actually think that the ending of the name "chalmersia" is a bit weird |
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The '''chalmersia'''<ref>As in [http://www.huygens-fokker.org/docs/intervals.html Huygens-Fokker Foundation's interval list]. There are other | The '''chalmersia'''<ref>As in [http://www.huygens-fokker.org/docs/intervals.html Huygens-Fokker Foundation's interval list]. There are other similar names that this comma sometimes goes by, including ''chalmersma'', ''chalmersima'', ''chalmerisma'' and ''chalmersisma'', though at least some of these are mistakes.</ref> is an [[unnoticeable comma|unnoticeable]] [[13-limit]] comma with a ratio of '''123201/123200''' and a value of approximately 0.014 [[cent]]s. Named in honor of [[John H. Chalmers]], it is the smallest 13-limit [[superparticular]] comma. Tempering it out equates [[351/350]] and [[352/351]], thus splitting [[176/175]] into two, and equates 385/351 and 351/320, thus splitting [[77/64]] into two – these are features highly characteristic of '''chalmers temperaments'''. In addition, it equates a stack consisting of a [[729/512]] tritone plus a [[169/128]] grave fourth with a stack consisting of a [[25/16]] augmented fifth plus a [[77/64]] minor third. | ||
== See also == | == See also == | ||
Revision as of 10:05, 27 December 2020
| Interval information |
reduced
The chalmersia[1] is an unnoticeable 13-limit comma with a ratio of 123201/123200 and a value of approximately 0.014 cents. Named in honor of John H. Chalmers, it is the smallest 13-limit superparticular comma. Tempering it out equates 351/350 and 352/351, thus splitting 176/175 into two, and equates 385/351 and 351/320, thus splitting 77/64 into two – these are features highly characteristic of chalmers temperaments. In addition, it equates a stack consisting of a 729/512 tritone plus a 169/128 grave fourth with a stack consisting of a 25/16 augmented fifth plus a 77/64 minor third.
See also
References
- ↑ As in Huygens-Fokker Foundation's interval list. There are other similar names that this comma sometimes goes by, including chalmersma, chalmersima, chalmerisma and chalmersisma, though at least some of these are mistakes.