137438953472/137231006679: Difference between revisions

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 {{Infobox Interval
 | Ratio = 137438953472/137231006679
-| Name = 7-13-comma
+| Name = 7-39 comma
 | Color name = Sasa-septhu comma
 | Comma = yes
 }}
-'''137438953472/137231006679''', the '''7-13-comma''', is a 13-limit [[unnoticeable comma]] of about 2.62{{cent}}. It is the amount by which a stack of of [[39/32]]'s fall short of two octaves.
+'''137438953472/137231006679''' is a 13-limit [[unnoticeable comma]] of about 2.62{{cent}}. It is the amount by which a stack of 7 [[39/32]]'s fall short of two octaves. It is tempered out in low edos that are a multiple of 7, which approximate 39/32 within a fraction of a cent. In [[L4MPLIGHT#Shasavistic music theory|Shasavistic theory]], it is called ''Safusagnama''.
+It factors into [[816293376/815730721]] and the [[tridecapyth comma]], and is also equal to seven [[minisma]]s minus the [[akjaysma]]. Thus, tempering out any of those pairs of commas implies also tempering this out.
 [[Category:Commas named systematically]]