181edo and stretched hemififths: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
Contribution (talk | contribs)
Contribution (talk | contribs)
Line 75: Line 75:
|24/13
|24/13
|-
|-
|183
|2
|13.260
|13.260
|'''2/1'''
|'''2/1'''
|-
|-
|214
|33
|218.785
|218.785
|9/8, 8/7
|9/8, 8/7
|-
|-
|236
|55
|364.641
|364.641
|'''16/13'''
|'''16/13'''
|-
|-
|267
|86
|570.166
|570.166
|18/13
|18/13
|-
|-
|290
|109
|722.652
|722.652
|3/2
|3/2
|-
|-
|321
|140
|928.177
|928.177
|12/7
|12/7
|-
|-
|343
|162
|1074.033
|1074.033
|13/7
|13/7
|-
|-
|366
|4
|26.519
|26.519
|2/1
|2/1
|-
|-
|
|35
|232.044
|232.044
|
|
|-
|-
|
|57
|377.901
|377.901
|
|
|-
|-
|
|88
|583.425
|583.425
|
|
|-
|-
|
|111
|735.912
|735.912
|
|
|-
|-
|
|142
|941.436
|941.436
|
|
|-
|-
|
|164
|1087.293
|1087.293
|
|
|-
|-
|
|6
|39.779
|39.779
|
|
|}
|}

Revision as of 14:19, 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 thoughout the octaves

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
2 13.260 2/1
33 218.785 9/8, 8/7
55 364.641 16/13
86 570.166 18/13
109 722.652 3/2
140 928.177 12/7
162 1074.033 13/7
4 26.519 2/1
35 232.044
57 377.901
88 583.425
111 735.912
142 941.436
164 1087.293
6 39.779