Landscape comma: Difference between revisions

Plumtree (talk | contribs)
m Normalising usage of Infobox Interval
TallKite (talk | contribs)
minor rewrite
Line 2: Line 2:
| Ratio = 250047/250000
| Ratio = 250047/250000
| Name = landscape comma
| Name = landscape comma
| Color name = z<sup>3</sup>g<sup>6</sup>3, trizogugu 3rd
| Color name = z<sup>3</sup>g<sup>6</sup>3, Trizogugu comma
| Comma = yes
| Comma = yes
}}
}}


The '''landscape comma''' is the [[7-limit]] [[unnoticeable comma]] with a ratio of '''250047/250000''' and a size of 0.33 [[cent]]s. It is the amount by which three [[63/50]]'s exceed an [[octave]], the amount by which three [[225/224|septimal kleismas]] fall short of the [[Pythagorean comma]], and also the difference of [[2401/2400]] and [[4375/4374]], the two smallest 7-limit superparticular commas. Tempering 63/50 interval into one degree of 3edo (exact 400 cents) is highly characteristic of [[landscape microtemperaments]] any tuning system (41edo, for example) in which the number of divisions of the octave is not a multiple of 3 cannot temper out the landscape comma.
The '''landscape comma''' is the [[7-limit]] [[unnoticeable comma]] with a ratio of '''250047/250000''' and a size of 0.33 [[cent]]s. It is the amount by which three [[63/50]]'s exceed an [[octave]], the amount by which three [[225/224|septimal kleismas]] fall short of the [[Pythagorean comma]], and also the difference of [[2401/2400]] and [[4375/4374]], the two smallest 7-limit superparticular commas. An octave widened by this comma is [-3 6 -6 3⟩, a monzo with four [[threeven]] numbers. Thus [[landscape microtemperaments]] split the octave into three parts. It follows that any edo (41, for example) that isn't threeven cannot temper out the landscape comma.


== See also ==
== See also ==