Chromatic semitone: Difference between revisions
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Like the diatonic semitone, this can benefit from using 2\24 |
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{{Wikipedia|Augmented unison}} | |||
A '''chromatic semitone''' or '''augmented unison''' is the [[chroma]] of a [[diatonic]] scale. It is also the large step of a [[p-chromatic]] scale or the small step of an [[m-chromatic]] scale. | |||
In [[just intonation]], an interval may be classified as a chromatic semitone if it is reasonably mapped to [[7edo|0\7]] and [[ | In [[just intonation]], an interval may be classified as a chromatic semitone if it is reasonably mapped to [[7edo|0\7]] and [[24edo|2\24]] (precisely zero steps of the diatonic scale and one step of the chromatic scale). The use of 24edo's 2\24 as the mapping criteria here rather than [[12edo]]'s 1\12 better captures the characteristics of many intervals in the [[11-limit|11-]] and [[13-limit]]. | ||
== | == Examples == | ||
* [[2187/2048]], the Pythagorean chromatic semitone (3-limit) | * [[2187/2048]], the Pythagorean chromatic semitone (3-limit) | ||
* [[25/24]], the classic chromatic semitone (5-limit) | * [[25/24]], the classic chromatic semitone (5-limit) | ||
* [[1089/1024]], the Alpharabian chromatic semitone (11-limit, specifically 2.3.11 subgroup) | |||
== See also == | |||
* [[Diatonic semitone]] | |||
[[Category:Diatonic]] | [[Category:Diatonic]] | ||
[[Category:Semitone]] | |||
[[Category:Chroma]] | |||