49edo: Difference between revisions
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'''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 |