181edo and stretched hemififths: Difference between revisions

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Contribution (talk | contribs)
Line 50: Line 50:
!Cents
!Cents
!Approximated Ratios
!Approximated Ratios
(octave-reduced)
|-
|-
|31
|31
Line 77: Line 76:
|-
|-
|183
|183
|1213.260
|13.260
|'''2/1'''
|'''2/1'''
|-
|-
|214
|214
|1418.785
|218.785
|9/8, 8/7
|9/8, 8/7
|-
|-
|236
|236
|1564.641
|364.641
|'''16/13'''
|'''16/13'''
|-
|-
|267
|267
|1770.166
|570.166
|18/13
|18/13
|-
|-
|290
|290
|1922.652
|722.652
|3/2
|3/2
|-
|-
|321
|321
|2128.177
|928.177
|12/7
|12/7
|-
|-
|343
|343
|2274.033
|1074.033
|13/7
|13/7
|-
|-
|366
|366
|2426.519
|26.519
|2/1
|2/1
|}
|}

Revision as of 14:08, 10 March 2023

Normal Hemififths

181edo supports normal Hemififths (MOS 3L 4s) with the mode 31 22 31 22 31 22 22

#\181 Cents Approximated Ratios
31 205.525 9/8
53 351.381 11/9
84 556.906 11/8
106 702.762 3/2
137 908.287 22/13
159 1054.144 11/6
181 1200.000 2/1


Stretched Hemififths

This mode can be improved in 181edo by stretching some "s" of the mode with 1 step of 181edo: 31 22 31 23 31 22 23

With this stretched mode, more JI ratios are approximated

Stretched Hemififths (octave-reduced )
#\181 Cents Approximated Ratios
31 205.525 9/8
53 351.381 11/9
84 556.906 11/8
107 709.392 3/2
138 914.917 22/13
160 1060.773 24/13
183 13.260 2/1
214 218.785 9/8, 8/7
236 364.641 16/13
267 570.166 18/13
290 722.652 3/2
321 928.177 12/7
343 1074.033 13/7
366 26.519 2/1