513/512: Difference between revisions
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m Moving from Category:Unnoticeable comma to Category:Unnoticeable commas using Cat-a-lot |
m Normalising usage of Infobox Interval |
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{{Infobox Interval | {{Infobox Interval | ||
| Name = undevicesimal comma, undevicesimal schisma, Boethius' comma | |||
| Comma = yes | |||
| Name = undevicesimal comma, | |||
| | |||
}} | }} | ||
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* [[List of superparticular intervals]] | * [[List of superparticular intervals]] | ||
[[Category:Boethius]] | [[Category:Boethius]] | ||
Revision as of 16:11, 25 October 2022
| Interval information |
undevicesimal schisma,
Boethius' comma
reduced,
reduced harmonic
513/512, the undevicesimal comma, undevicesimal schisma or Boethius' comma, is a 19-limit (also 2.3.19 subgroup) unnoticeable comma. It is the amount by which 19/16 exceeds the Pythagorean minor third (32/27). By tempering it out is defined the boethius temperament, which enables the boethius chords. It is significant in Functional Just System and Helmholtz-Ellis notation as the formal comma to translate a Pythagorean interval to a nearby undevicesimal interval.