User:CompactStar/Ed9/n: Difference between revisions

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Created page with "backing up the page just in the off chance there is any useful theory here An '''ed9/n''' is an equal-step tuning devised by equally dividing an interval of the form 9/n where n is any integer. == Ed9/1 == ''See Ed9.'' == Ed9/2 == The '''equal division of 9/2''' ('''ed9/2''') is a tuning obtained by dividing two octaves and a Pythagorean major second (9/2) into a number of equal steps. === Properties === Division of 9/2 into equal parts does..."
 
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backing up the page just in the off chance there is any useful theory here  
backing up the mmtm page just in the off chance there is any useful theory here  


An '''ed9/n''' is an [[equal-step tuning]] devised by equally dividing an interval of the form 9/n where n is any integer.
An '''ed9/n''' is an [[equal-step tuning]] devised by equally dividing an interval of the form 9/n where n is any integer.
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One approach to ed9/2 tunings is the use of the 9:10:14 chord as the fundamental complete sonority in a very similar way to the 4:5:6:(8) chord in meantone. Whereas in meantone it takes four 3/2 to get to [[5/1]], here it takes seven [[14/9]] to get to [[10/9]] (tempering out the comma 215233605/210827008 in the 9/2.5.7 fractional subgroup). This temperament yields 7-, 10-, 17-, and 27-note [[mos scale]]s.
One approach to ed9/2 tunings is the use of the 9:10:14 chord as the fundamental complete sonority in a very similar way to the 4:5:6:(8) chord in meantone. Whereas in meantone it takes four 3/2 to get to [[5/1]], here it takes seven [[14/9]] to get to [[10/9]] (tempering out the comma 215233605/210827008 in the 9/2.5.7 fractional subgroup). This temperament yields 7-, 10-, 17-, and 27-note [[mos scale]]s.


[[Category:Ed9/2| ]] <!-- main article -->
[[Category:Ed9/2's| ]] <!-- main article -->


== Ed9/4 ==
== Ed9/4 ==
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[[Category:Ed9/4| ]] <!-- main article -->
[[Category:Ed9/4's| ]] <!-- main article -->


== Ed9/5 ==
== Ed9/5 ==
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[[Category:Ed9/5| ]] <!-- main article -->
[[Category:Ed9/5's| ]] <!-- main article -->


== Ed9/7 ==
== Ed9/7 ==
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* and what [[5edo]], [[7edo]], and [[12edo]] are to the [[EDO|division of 2/1]].
* and what [[5edo]], [[7edo]], and [[12edo]] are to the [[EDO|division of 2/1]].
   
   
[[Category:Ed9/7| ]] <!-- main article -->
[[Category:Ed9/7's| ]] <!-- main article -->


== Ed9/8 ==
== Ed9/8 ==
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* [[15ed9/8]]
* [[15ed9/8]]


[[Category:Ed9/8| ]] <!-- main article -->
[[Category:Ed9/8's| ]] <!-- main article -->