49edo: Difference between revisions

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<b>49-EDO</b>, or <b>49 equal division</b> divides the octave into 49 equal parts of 24.490 [[cent|cent]]s each. It is very much on the sharp side of things, with sharp tunings of 3 (it is the first square equal division with a "real" 3 of size coprime to its cardinality), 5, 7, and 11. It is the [[Optimal_patent_val|optimal patent val]] for [[Superpyth|superpyth temperament]] in the 7 and 11 limits, archytas ([[7-limit|7-limit]]) and [[Archytas_clan|ares]] ([[11-limit|11-limit]]) planar temperaments and almost identical to the e-based analog of [[LucyTuning|LucyTuning]]. It [[tempering_out|tempers out]] 64/63, 245/243 and 3125/3087 in the 7-limit, and 100/99 and 1375/1372 in the 11-limit.
'''49-EDO''', or '''49 equal temperament''' divides the octave into 49 equal parts of 24.490 [[Cent|cents]] each.  
 
== Theory ==
49edo is very much on the sharp side of things, with sharp tunings of 3 (it is the first square equal division with a "real" 3 of size coprime to its cardinality), 5, 7, and 11. It is the [[Optimal_patent_val|optimal patent val]] for [[Superpyth|superpyth temperament]] in the 7 and 11 limits, archytas ([[7-limit]]) and [[Archytas_clan|ares]] ([[11-limit]]) planar temperaments and almost identical to the e-based analog of [[Lucy tuning]]. It [[tempering_out|tempers out]] [[64/63]], [[245/243]] and [[3125/3087]] in the 7-limit, and [[100/99]] and [[1375/1372]] in the 11-limit.
 
== Intervals ==
{| class="wikitable center-all right-2 left-3"
! #
! Cents
! Approximate Ratios
|-
| 0
| 0.000
| [[1/1]]
|-
| 1
| 24.490
| [[50/49]]
|-
| 2
| 48.980
| [[81/80]], [[28/27]], [[36/35]], [[49/48]]
|-
| 3
| 73.469
| [[25/24]], [[22/21]], [[33/32]]
|-
| 4
| 97.959
| [[16/15]], [[21/20]]
|-
| 5
| 122.449
| [[15/14]]
|-
| 6
| 146.939
| [[12/11]]
|-
| 7
| 171.429
| [[10/9]], [[11/10]]
|-
| 8
| 195.918
|
|-
| 9
| 220.408
| [[9/8]], [[8/7]]
|-
| 10
| 244.898
|
|-
| 11
| 269.388
| [[7/6]]
|-
| 12
| 293.878
|
|-
| 13
| 318.367
| [[6/5]]
|-
| 14
| 342.857
| [[11/9]]
|-
| 15
| 367.347
| [[27/22]]
|-
| 16
| 391.837
| [[5/4]]
|-
| 17
| 416.327
| [[14/11]]
|-
| 18
| 440.816
| [[9/7]]
|-
| 19
| 465.306
|
|-
| 20
| 489.796
| [[4/3]], [[21/16]]
|-
| 21
| 514.286
|
|-
| 22
| 538.776
| [[27/20]], [[15/11]]
|-
| 23
| 563.265
| [[11/8]]
|-
| 24
| 587.755
| [[7/5]]
|-
| 25
| 612.245
| [[10/7]]
|-
| 26
| 636.735
| [[16/11]]
|-
| 27
| 661.244
| [[40/27]], [[22/15]]
|-
| 28
| 685.714
|
|-
| 29
| 710.204
| [[3/2]], [[32/21]]
|-
| 30
| 734.694
|
|-
| 31
| 759.184
| [[14/9]]
|-
| 32
| 783.673
| [[11/7]]
|-
| 33
| 808.163
| [[8/5]]
|-
| 34
| 832.653
| [[44/27]]
|-
| 35
| 857.143
| [[18/11]]
|-
| 36
| 881.633
| [[5/3]]
|-
| 37
| 906.122
|
|-
| 38
| 930.612
| [[12/7]]
|-
| 39
| 955.102
|
|-
| 40
| 979.592
| [[16/9]], [[7/4]]
|-
| 41
| 1004.082
|
|-
| 42
| 1028.571
| [[9/5]], [[20/11]]
|-
| 43
| 1053.061
| [[11/6]]
|-
| 44
| 1077.551
| [[28/15]]
|-
| 45
| 1102.041
| [[15/8]], [[40/21]]
|-
| 46
| 1126.531
| [[48/25]], [[21/11]], [[64/33]]
|-
| 47
| 1151.020
| [[160/81]], [[27/14]], [[35/18]], [[96/49]]
|-
| 48
| 1175.510
| [[49/25]]
|-
| 49
| 1200.000
| [[2/1]]
|}
[[Category:edo]]
[[Category:edo]]
[[Category:superpyth]]
[[Category:superpyth]]

Revision as of 05:07, 4 August 2020

49-EDO, or 49 equal temperament divides the octave into 49 equal parts of 24.490 cents each.

Theory

49edo is very much on the sharp side of things, with sharp tunings of 3 (it is the first square equal division with a "real" 3 of size coprime to its cardinality), 5, 7, and 11. It is the optimal patent val for superpyth temperament in the 7 and 11 limits, archytas (7-limit) and ares (11-limit) planar temperaments and almost identical to the e-based analog of Lucy tuning. It tempers out 64/63, 245/243 and 3125/3087 in the 7-limit, and 100/99 and 1375/1372 in the 11-limit.

Intervals

# Cents Approximate Ratios
0 0.000 1/1
1 24.490 50/49
2 48.980 81/80, 28/27, 36/35, 49/48
3 73.469 25/24, 22/21, 33/32
4 97.959 16/15, 21/20
5 122.449 15/14
6 146.939 12/11
7 171.429 10/9, 11/10
8 195.918
9 220.408 9/8, 8/7
10 244.898
11 269.388 7/6
12 293.878
13 318.367 6/5
14 342.857 11/9
15 367.347 27/22
16 391.837 5/4
17 416.327 14/11
18 440.816 9/7
19 465.306
20 489.796 4/3, 21/16
21 514.286
22 538.776 27/20, 15/11
23 563.265 11/8
24 587.755 7/5
25 612.245 10/7
26 636.735 16/11
27 661.244 40/27, 22/15
28 685.714
29 710.204 3/2, 32/21
30 734.694
31 759.184 14/9
32 783.673 11/7
33 808.163 8/5
34 832.653 44/27
35 857.143 18/11
36 881.633 5/3
37 906.122
38 930.612 12/7
39 955.102
40 979.592 16/9, 7/4
41 1004.082
42 1028.571 9/5, 20/11
43 1053.061 11/6
44 1077.551 28/15
45 1102.041 15/8, 40/21
46 1126.531 48/25, 21/11, 64/33
47 1151.020 160/81, 27/14, 35/18, 96/49
48 1175.510 49/25
49 1200.000 2/1