1815/1792: Difference between revisions

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The '''guerrisma''', '''1815/1792''', is an [[11-limit]] comma that is much like the larger inverse of the [[absinthma]], from which it differs by the [[Alpharabian comma]].
The '''guerrisma''', '''1815/1792''', is an [[11-limit]] [[comma]] that is much like the larger inverse of the [[absinthma]], from which it differs by the [[Alpharabian comma]].


While the absinthma causes [[11/8]] to fall exactly halfway between [[4/3]] and [[10/7]], the guerrisma causes it to fall halfway between [[4/3]] and [[7/5]]. It is also extremely close to [[81/80]], exceeding it only by a lehmerisma ([[3025/3024]]).
While [[tempering out]] the absinthma implies [[11/8]] falls exactly halfway between [[4/3]] and [[10/7]], tempering out the guerrisma implies it falls halfway between [[4/3]] and [[7/5]]. It is also extremely close to [[81/80]], exceeding it only by a lehmerisma ([[3025/3024]]).


It is tempered out in such notable EDOs as 22, 31 and 53, as well as the still fairly significant 26 and 29, as well as in a whole panoply of rank-2 temperaments.
It is tempered out in such notable [[edo]]s as {{EDOs| 22, 31 and 53 }}, as well as the still fairly significant 26 and 29, as well as in a whole panoply of rank-2 temperaments.


The name of this comma is derived from ''guerre'', French for ''war'', after the ratio of 1815/1792. 1792-1815 was a period of many wars involving France, including both the Revolutionary Wars and the Napoleonic Wars.
The name of this comma is derived from ''guerre'', French for ''war'', after the ratio of 1815/1792. 1792-1815 was a period of many wars involving France, including both the Revolutionary Wars and the Napoleonic Wars.