261/256: Difference between revisions
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'''261/256''', the '''vicesimononal comma''', or the '''29-limit ~sixth tone''' as is known in [[Helmholtz-Ellis notation]], is a [[medium comma|medium]] 2.3.29 [[subgroup]] [[comma]]. It is the amount by which [[29/16|29/16 (the octave-reduced 29th harmonic)]] exceeds the [[16/9|Pythagorean minor seventh (16/9)]]. It is significant in Helmholtz-Ellis notation and [[Functional Just System]] as the formal comma to translate a Pythagorean interval to a nearby | '''261/256''', the '''vicesimononal comma''', or the '''29-limit ~sixth tone''' as is known in [[Helmholtz-Ellis notation]], is a [[medium comma|medium]] 2.3.29 [[subgroup]] [[comma]]. It is the amount by which [[29/16|29/16 (the octave-reduced 29th harmonic)]] exceeds the [[16/9|Pythagorean minor seventh (16/9)]]. It is significant in Helmholtz-Ellis notation and [[Functional Just System]] as the formal comma to translate a Pythagorean interval to a nearby vicesimononal interval. | ||
[[Category:Commas named for their regular temperament properties]] | |||
Latest revision as of 17:47, 4 September 2025
| Interval information |
29-limit ~sixth tone (HEJI)
reduced harmonic
261/256, the vicesimononal comma, or the 29-limit ~sixth tone as is known in Helmholtz-Ellis notation, is a medium 2.3.29 subgroup comma. It is the amount by which 29/16 (the octave-reduced 29th harmonic) exceeds the Pythagorean minor seventh (16/9). It is significant in Helmholtz-Ellis notation and Functional Just System as the formal comma to translate a Pythagorean interval to a nearby vicesimononal interval.