3888/3887: Difference between revisions
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'''3888/3887''', the '''shoalma''' or '''vicetride comma''', is a [[23-limit]] and 2.3.13.23-[[subgroup]] [[square superparticular|semiparticular]] comma of about 0.445 [[cent]]s. It is the difference between [[27/23]] and [[13/12]]<sup>2</sup>, or between [[23/12]] and [[18/13]]<sup>2</sup> and in this way tempering this comma out allows for the introduction of intervals of 23 into the 2.3.13 subgroup, like is done in the notable 2.3.13 systems [[17edo]] and [[147edo]]. | '''3888/3887''', the '''shoalma''' or '''vicetride comma''', is a [[23-limit]] and 2.3.13.23-[[subgroup]] [[square superparticular|semiparticular]] comma of about 0.445 [[cent]]s. It is the difference between [[27/23]] and ([[13/12]])<sup>2</sup>, or between [[23/12]] and ([[18/13]])<sup>2</sup> and in this way tempering this comma out allows for the introduction of intervals of 23 into the 2.3.13 subgroup, like is done in the notable 2.3.13 systems [[17edo]] and [[147edo]]. | ||
== Etymology == | == Etymology == | ||