513/512: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = undevicesimal comma, undevicesimal schisma, Boethius' comma | | Name = undevicesimal comma, undevicesimal schisma, Boethius' comma | ||
| Color name = L19o1, Lano comma | | Color name = L19o1, lano 1sn,<br>Lano comma | ||
| Comma = yes | | Comma = yes | ||
}} | }} | ||
Revision as of 21:59, 12 January 2023
| Interval information |
undevicesimal schisma,
Boethius' comma
Lano 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.