2200/2197: Difference between revisions

@@ Line 1: / Line 1: @@
 {{Infobox Interval
-| Name = Petrma
+| Name = petrma
 | Comma = yes
-}} The Petrma, 2200/2197, is tempered out by several edos, most notably [[50edo]].
+}}
+The '''petrma''', '''2200/2197''', is a [[13-limit]] [[comma]] measuring about 2.4{{cent}}. It often arises as the difference between other commas: ([[169/168]])/([[275/273]]), ([[352/351]])/([[676/675]]), ([[847/845]])/([[1001/1000]]), ([[625/624]])/([[4225/4224]]), and ([[729/728]])/([[123201/123200]]). It factors into ([[1575/1573]])([[10648/10647]]).
+Tempering out this comma in the 13-limit leads to the rank-5 '''petrmic temperament''', and enables [[petrmic chords]]. It is tempered out by several edos, most notably [[50edo]].
+[[Category:Petrmic]]