Dimcomp comma: Difference between revisions
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The '''dimcomp comma''' is a [[small comma|small]] [[7-limit]] [[comma]] measuring about 7.4 [[cent]]s. It is the amount by which a stack of four quasi-tempered minor thirds (([[25/21]])<sup>4</sup>) exceeds an [[ | The '''dimcomp comma''' is a [[small comma|small]] [[7-limit]] [[comma]] measuring about 7.4 [[cent]]s. It is the amount by which a stack of four quasi-tempered minor thirds (([[25/21]])<sup>4</sup>) exceeds an [[octave]]. | ||
In terms of other commas, it is the difference between the [[marvel comma]] and the [[landscape comma]]. | In terms of other commas, it is the difference between the [[marvel comma]] and the [[landscape comma]]. | ||
Latest revision as of 14:15, 14 July 2026
| Interval information |
The dimcomp comma is a small 7-limit comma measuring about 7.4 cents. It is the amount by which a stack of four quasi-tempered minor thirds ((25/21)4) exceeds an octave.
In terms of other commas, it is the difference between the marvel comma and the landscape comma.
Temperaments
Tempering out this comma in the 7-limit leads to the dimcomp temperament, with the effect of splitting the octave into four equal parts, and edos that are not multiples of 4 cannot be tempering it out. Rank-2 temperaments tempering it out include diminished, compton, bidia, quadritikleismic, octoid, etc.
See Dimcomp family for a number of rank-3 temperaments where it is tempered out.