Rodan comma: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 131072000/129140163 | | Ratio = 131072000/129140163 | ||
| Name = | | Name = rodan comma, roda | ||
| Color name = sasa-triyo 2nd, ssy<sup>3</sup>2 | | Color name = sasa-triyo 2nd, ssy<sup>3</sup>2 | ||
| Comma = yes | | Comma = yes | ||
}} | }} | ||
The '''rodan comma''' ({{monzo|legend=1| 20 -17 3 }}, [[ratio]]: 131072000/129140163) is a [[small comma|small]] [[5-limit]] [[comma]] of about 25.7 [[cent]]s. | The '''rodan comma''' ({{monzo|legend=1| 20 -17 3 }}, [[ratio]]: 131072000/129140163), otherwise known as the '''roda''', is a [[small comma|small]] [[5-limit]] [[comma]] of about 25.7 [[cent]]s. As part of the [[syntonic–diatonic equivalence continuum]], it is the difference between the [[256/243|Pythagorean diatonic semitone (256/243)]] and a stack of three [[syntonic comma]]s. It is also the amount by which a stack of three [[729/640|acute whole tones (729/640)]] falls short of the [[3/2|perfect fifth]]. | ||
== Temperaments == | |||
{{see also|Syntonic–diatonic equivalence continuum#Rodan (5-limit) }} | |||
[[Tempering out]] this comma leads to the 5-limit version of [[rodan]]. | |||
[[Category:Rodan]] | |||
[[Category:Commas named after mythology or literature]] | |||