Satanic comma: Difference between revisions

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The satanic comma is the difference between 666 perfect fifths (octave-reduced) and a single perfect fifth. Equivalently, it's the difference between 665 perfect fifths (octave-reduced) and the unison -- but that wouldn't be as devilishly intriguing.
{{Infobox Interval
| Monzo = -1054 665
| Name = satanic comma
| Comma = yes
}}
The '''satanic comma''' ([[monzo]]: {{monzo| -1054 665 }}) is the difference between 666 perfect fifths (octave-reduced) and a single perfect fifth. Equivalently, it is the difference between 665 perfect fifths (octave-reduced) and the unison but that would not be as devilishly intriguing. This difference is inaudible, at only 0.076{{cent}}.  


This difference is inaudible, at only<span style=""> 0.076</span> cents. The monzo is |-1054 665&gt;.
It is also the difference between 13 [[Mercator's comma]]s and 2 [[pythagorean comma]]s, or put simply, the difference between the [[359-comma]] and the [[306-comma]].  


It is tempered out in [[665edo|665 EDO]] and its multiples (1330 EDO, etc.).
It is tempered out in [[665edo]] and its multiples ([[1330edo]], etc.), with 665edo itself being an 11-strong 3-2 [[telicity|telic]] system due to tempering this comma out. The next smallest 3-limit comma is the [[Archangelic comma|190537-comma]], which is orders of magnitude much smaller and complex.
 
== Etymology ==
This comma was named by [[Marc Jones]] in 1990<ref>[http://www.tonalsoft.com/enc/j/marc-jones-defs.aspx Tonalsoft Encyclopedia | ''tuning terms by Marc Jones'']</ref>.
 
== Notes ==
 
[[Category:Satanic]]
[[Category:Commas named for the intervals they stack]]