406/405: Difference between revisions
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{{Infobox interval|Ratio=406/405|Name=minor semivinema|Color name=Twenozogu 2nd|Comma=yes}} | {{Infobox interval | ||
'''406/405''', the '''minor semivinema''' is a [[comma]] | | Ratio = 406/405 | ||
| Name = minor semivinema | |||
| Color name = Twenozogu 2nd | |||
| Comma = yes | |||
}} | |||
'''406/405''', the '''minor semivinema''' is a [[small comma|small]] [[29-limit]] (also 2.3.5.7.29-[[subgroup]]) [[comma]]. It forms the difference between [[29/27]] and [[15/14]], and between [[30/29]] and [[28/27]]. | |||
== Commatic relations == | |||
This comma may be found as the difference between the following superparticular ratios: | |||
* [[91/90]] and [[117/116]] | |||
* [[116/115]] and [[162/161]] | |||
* [[136/135]] and [[204/203]] | |||
* [[145/144]] and [[225/224]] | |||
* [[196/195]] and [[378/377]] | |||
* [[232/231]] and [[540/539]] | |||
* [[261/260]] and [[729/728]] | |||
* [[325/324]] and [[1625/1624]] | |||
* [[343/342]] and [[2205/2204]] | |||
* [[352/351]] and [[2640/2639]] | |||
* [[361/360]] and [[3249/3248]] | |||
* [[364/363]] and [[3510/3509]] | |||
* [[385/384]] and [[7425/7424]] | |||
* [[391/390]] and [[10557/10556]] | |||
* [[392/391]] and [[11340/11339]] | |||
* [[400/399]] and [[27000/26999]] | |||
It factors into the following superparticular ratios: | |||
* [[784/783]] and [[841/840]] | |||
* [[676/675]] and [[1015/1014]] | |||
* [[609/608]] and [[1216/1215]] | |||
* [[595/594]] and [[1276/1275]] | |||
* [[551/550]] and [[1540/1539]] | |||
* [[476/475]] and [[2755/2754]] | |||
* [[460/459]] and [[3451/3450]] | |||
* [[441/440]] and [[5103/5103]] | |||
== Etymology == | == Etymology == | ||
The word ''semivinema'' was introduced by [[User:Xenllium|Xenllium]] in 2024. It is a contraction of ''vicesimononal semitone comma'' into a single word. | The word ''semivinema'' was introduced by [[User:Xenllium|Xenllium]] in 2024. It is a contraction of ''vicesimononal semitone comma'' into a single word, where ''vicesimononal semitone'' refers to 29/27. | ||
== See also == | == See also == | ||
* [[378/377]] – major semivinema | * [[378/377]] – major semivinema | ||
* [[List of superparticular intervals]] | * [[List of superparticular intervals]] | ||
[[Category:Commas named for the intervals they stack]] | [[Category:Commas named for the intervals they stack]] | ||