21/20: Difference between revisions
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Clarification and maybe we avoid the term "chromatic semitone" here, just chroma |
m Link order and description |
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* [[40/21]] – its [[octave complement]] | * [[40/21]] – its [[octave complement]] | ||
* [[10/7]] – its [[fifth complement]] | * [[10/7]] – its [[fifth complement]] | ||
* [[List of superparticular intervals]] | * [[List of superparticular intervals]] | ||
* [[Gallery of just intervals]] | * [[Gallery of just intervals]] | ||
* [[Septisemi temperaments]], where it is tempered out | |||
* [[Wikipedia:Septimal chromatic semitone|Septimal chromatic semitone - Wikipedia]] | * [[Wikipedia:Septimal chromatic semitone|Septimal chromatic semitone - Wikipedia]] | ||
[[Category:7-limit]] | [[Category:7-limit]] | ||
[[Category:Interval]] | [[Category:Interval]] | ||
[[Category:Ratio]] | |||
[[Category:Superparticular]] | [[Category:Superparticular]] | ||
[[Category:Second]] | [[Category:Second]] | ||
[[Category:Semitone]] | [[Category:Semitone]] | ||
[[Category:todo:expand]] | [[Category:todo:expand]] | ||
Revision as of 09:49, 15 October 2020
| Interval information |
large septimal chroma
reduced
[sound info]
21/20 is a small semitone of about 85 cents. It may be found in 7-limit just intonation as, for example, the difference between 8/7 and 6/5, or between 5/3 and 7/4.
Although called a chroma for its proximity (and conflation in systems like septimal meantone) with the major chroma 135/128, 21/20 is a diatonic semitone in both Helmholtz-Ellis notation and Functional Just System because it is 5120/5103 smaller than the Pythagorean minor second 256/243.
See also
- 40/21 – its octave complement
- 10/7 – its fifth complement
- List of superparticular intervals
- Gallery of just intervals
- Septisemi temperaments, where it is tempered out
- Septimal chromatic semitone - Wikipedia