Chromatic semitone: Difference between revisions
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Add Wikipedia box, improve lead section (formulation now makes it clear that there are multiple intervals that can be called chromatic semitone), misc. edits |
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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 [[12edo|1\12]] (precisely zero steps of the diatonic scale and one step of the chromatic scale). | In [[just intonation]], an interval may be classified as a chromatic semitone if it is reasonably mapped to [[7edo|0\7]] and [[12edo|1\12]] (precisely zero steps of the diatonic scale and one step of the chromatic scale). | ||
== | == 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) | ||
== See also == | |||
* [[Diatonic semitone]] | |||
[[Category:Diatonic]] | [[Category:Diatonic]] | ||
[[Category:Semitone]] | [[Category:Semitone]] | ||
[[Category:Chroma]] | [[Category:Chroma]] | ||
Revision as of 04:05, 22 August 2023
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 0\7 and 1\12 (precisely zero steps of the diatonic scale and one step of the chromatic scale).
Examples
- 2187/2048, the Pythagorean chromatic semitone (3-limit)
- 25/24, the classic chromatic semitone (5-limit)