129/128

From Xenharmonic Wiki
Revision as of 04:00, 24 September 2023 by Stephen Weigel (talk | contribs) (Created for HEJI)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Interval information
Ratio 129/128
Subgroup monzo 2.3.43 [-7 1 1⟩
Size in cents 13.4727065¢
Names 43-limit comma (HEJI)

129/128, or the 43-limit Johnston comma (HEJI), is a 2.3.43 subgroup comma. It is the amount by which 43/32 (the 43rd harmonic) exceeds the perfect fourth (4/3). It is significant in Helmholtz-Ellis notation as the formal comma to translate a Pythagorean interval to a nearby 43-limit (prefix???) interval.

Retrieved from "https://en.xen.wiki/index.php?title=129/128&oldid=124719"