View source for Morion

The '''morion''' (plural: '''moria''') is a [[unit of interval size]] equivalent to 1 step of [[72edo]].

6 moria make 1 degree of [[12edo]].

[[72edo]] is useful as a fine-grain [[interval size measure]], particularly in barbershop harmony, wherein 1, 2, and 3 moria represent 'small', 'medium' and 'large' adjustments from 12edo in microtuning of harmony parts to [[7-limit]] [[JI]]. 1 morion takes, for example, [[16/9]] to [[9/5]], via [[81/80]]; 2 moria takes, for example, [[16/9]] to [[7/4]], via [[64/63]]; and 3 moria takes, for example, [[9/5]] to [[7/4]], via [[36/35]].

[[72edo]] is also fantastic in the [[11-limit]], and provides a great framework for extending barbershop harmony to the [[11-limit]], where the large adjustment (3 moria) already familiar to harmony singers may also take, for example, [[4/3]] to [[11/8]], via [[33/32]], and the medium adjustment (2 moria) may also take, for example, [[9/5]] to [[11/6]], or [[15/8]] to [[11/6]], via [[55/54]] or [[45/44]] respectively.

1 morion is exactly 170.5 [[prima]]s. 

[[Category:72edo]]
[[Category:Interval size measures]]