56edo: Difference between revisions
m →Theory: (''See regular temperament for more about what all this means and how to use it.'') Tag: Reverted |
→Music: Add Bryan Deister's ''Waltz in 56edo'' (2025) |
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56edo shares its near perfect quality of classical major third with [[28edo]], which it doubles, while also adding a superpythagorean 5th that is a convergent towards the [[Metallic harmonic series|bronze metallic mean]], following [[17edo]] and preceding [[185edo]]. Because it contains 28edo's major third and also has a step size very close to the syntonic comma, 56edo contains very accurate approximations of both the classic major third [[5/4]] and the Pythagorean major third [[81/64]]. Unfortunately, this "Pythagorean major third" is not the major third as is stacked by fifths in 56edo. | 56edo shares its near perfect quality of classical major third with [[28edo]], which it doubles, while also adding a superpythagorean 5th that is a convergent towards the [[Metallic harmonic series|bronze metallic mean]], following [[17edo]] and preceding [[185edo]]. Because it contains 28edo's major third and also has a step size very close to the syntonic comma, 56edo contains very accurate approximations of both the classic major third [[5/4]] and the Pythagorean major third [[81/64]]. Unfortunately, this "Pythagorean major third" is not the major third as is stacked by fifths in 56edo. | ||
56edo can be used to tune [[hemithirds]], [[superkleismic]], [[sycamore]] and [[keen]] temperaments, and using {{val| 56 89 130 158 }} (56d) as the equal temperament val, for [[pajara]]. It provides the [[optimal patent val]] for 7-, 11- and 13-limit [[sycamore]], and the 11-limit 56d val is close to the [[POTE tuning]] for 11-limit pajara. | One step of 56edo is the closest direct approximation to the syntonic comma, [[81/80]], with the number of directly approximated syntonic commas per octave being 55.7976. (However, note that by [[patent val]] mapping, 56edo actually maps the syntonic comma inconsistently, to two steps.) [[Barium]] temperament realizes this proximity through regular temperament theory, and is supported by notable edos like [[224edo]], [[1848edo]], and [[2520edo]], which is a highly composite edo. | ||
56edo can be used to tune [[hemithirds]], [[superkleismic]], [[sycamore]] and [[keen]] temperaments, and using {{val| 56 89 130 158 }} (56d) as the equal temperament val, for [[pajara]]. It provides the [[optimal patent val]] for 7-, 11- and 13-limit [[sycamore]], and the 11-limit 56d val is close to the [[POTE tuning]] for 11-limit pajara. | |||
=== Prime harmonics === | === Prime harmonics === | ||
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=== Subsets and supersets === | === Subsets and supersets === | ||
Since 56 factors into {{nowrap|2<sup>3</sup> × 7}}, 56edo has subset edos {{EDOs| 2, 4, 7, 8, 14, 28 }}. | Since 56 factors into {{nowrap|2<sup>3</sup> × 7}}, 56edo has subset edos {{EDOs| 2, 4, 7, 8, 14, 28 }}. | ||
== Intervals == | == Intervals == | ||
{| class="wikitable center-all right-2 left-3" | {| class="wikitable center-all right-2 left-3" | ||
|- | |- | ||
! | ! # | ||
! Cents | ! Cents | ||
! Approximate ratios* | ! Approximate ratios* | ||
Line 24: | Line 24: | ||
|- | |- | ||
| 0 | | 0 | ||
| 0. | | 0.0 | ||
| [[1/1]] | | [[1/1]] | ||
| {{UDnote|step=0}} | | {{UDnote|step=0}} | ||
|- | |- | ||
| 1 | | 1 | ||
| 21. | | 21.4 | ||
| ''[[49/48]]'', [[64/63]] | | ''[[49/48]]'', [[55/54]], [[56/55]], [[64/63]] | ||
| {{UDnote|step=1}} | | {{UDnote|step=1}} | ||
|- | |- | ||
| 2 | | 2 | ||
| 42. | | 42.9 | ||
| ''[[28/27]]'', [[50/49]], ''[[81/80]]'' | | ''[[28/27]]'', [[40/39]], [[45/44]], [[50/49]], ''[[81/80]]'' | ||
| {{UDnote|step=2}} | | {{UDnote|step=2}} | ||
|- | |- | ||
| 3 | | 3 | ||
| 64. | | 64.3 | ||
| [[25/24]], ''[[36/35]]'', ''[[33/32]]'' | | [[25/24]], ''[[36/35]]'', ''[[33/32]]'' | ||
| {{UDnote|step=3}} | | {{UDnote|step=3}} | ||
|- | |- | ||
| 4 | | 4 | ||
| 85. | | 85.7 | ||
| [[21/20]], [[22/21]] | | [[19/18]], [[20/19]], [[21/20]], [[22/21]] | ||
| {{UDnote|step=4}} | | {{UDnote|step=4}} | ||
|- | |- | ||
| 5 | | 5 | ||
| 107. | | 107.1 | ||
| [[16/15]] | | [[16/15]], [[17/16]], [[18/17]] | ||
| {{UDnote|step=5}} | | {{UDnote|step=5}} | ||
|- | |- | ||
| 6 | | 6 | ||
| 128. | | 128.6 | ||
| [[15/14]], [[13/12]], [[14/13]] | | [[15/14]], [[13/12]], [[14/13]] | ||
| {{UDnote|step=6}} | | {{UDnote|step=6}} | ||
|- | |- | ||
| 7 | | 7 | ||
| 150. | | 150.0 | ||
| [[12/11]] | | [[12/11]] | ||
| {{UDnote|step=7}} | | {{UDnote|step=7}} | ||
|- | |- | ||
| 8 | | 8 | ||
| 171. | | 171.4 | ||
| ''[[10/9]]'', [[11/10]] | | ''[[10/9]]'', [[11/10]], [[21/19]] | ||
| {{UDnote|step=8}} | | {{UDnote|step=8}} | ||
|- | |- | ||
| 9 | | 9 | ||
| 192. | | 192.9 | ||
| [[28/25]] | | [[19/17]], [[28/25]] | ||
| {{UDnote|step=9}} | | {{UDnote|step=9}} | ||
|- | |- | ||
| 10 | | 10 | ||
| 214. | | 214.3 | ||
| [[9/8]] | | [[9/8]], [[17/15]] | ||
| {{UDnote|step=10}} | | {{UDnote|step=10}} | ||
|- | |- | ||
| 11 | | 11 | ||
| 235. | | 235.7 | ||
| [[8/7]] | | [[8/7]] | ||
| {{UDnote|step=11}} | | {{UDnote|step=11}} | ||
|- | |- | ||
| 12 | | 12 | ||
| 257. | | 257.1 | ||
| [[7/6 | | [[7/6]] | ||
| {{UDnote|step=12}} | | {{UDnote|step=12}} | ||
|- | |- | ||
| 13 | | 13 | ||
| 278. | | 278.6 | ||
| [[ | | [[13/11]], [[20/17]] | ||
| {{UDnote|step=13}} | | {{UDnote|step=13}} | ||
|- | |- | ||
| 14 | | 14 | ||
| 300. | | 300.0 | ||
| [[25/21]] | | [[19/16]], [[25/21]] | ||
| {{UDnote|step=14}} | | {{UDnote|step=14}} | ||
|- | |- | ||
| 15 | | 15 | ||
| 321. | | 321.4 | ||
| [[6/5]] | | [[6/5]] | ||
| {{UDnote|step=15}} | | {{UDnote|step=15}} | ||
|- | |- | ||
| 16 | | 16 | ||
| 342. | | 342.9 | ||
| [[11/9]], [[ | | [[11/9]], [[17/14]] | ||
| {{UDnote|step=16}} | | {{UDnote|step=16}} | ||
|- | |- | ||
| 17 | | 17 | ||
| 364. | | 364.3 | ||
| [[ | | [[16/13]], [[21/17]], [[26/21]] | ||
| {{UDnote|step=17}} | | {{UDnote|step=17}} | ||
|- | |- | ||
| 18 | | 18 | ||
| 385. | | 385.7 | ||
| [[5/4]] | | [[5/4]] | ||
| {{UDnote|step=18}} | | {{UDnote|step=18}} | ||
|- | |- | ||
| 19 | | 19 | ||
| 407. | | 407.1 | ||
| [[14/11]] | | [[14/11]], [[19/12]], [[24/19]] | ||
| {{UDnote|step=19}} | | {{UDnote|step=19}} | ||
|- | |- | ||
| 20 | | 20 | ||
| 428. | | 428.6 | ||
| [[32/25]], [[33/26]] | | [[32/25]], [[33/26]] | ||
| {{UDnote|step=20}} | | {{UDnote|step=20}} | ||
|- | |- | ||
| 21 | | 21 | ||
| 450. | | 450.0 | ||
| ''[[9/7]]'', [[13/10]] | | ''[[9/7]]'', [[13/10]] | ||
| {{UDnote|step=21}} | | {{UDnote|step=21}} | ||
|- | |- | ||
| 22 | | 22 | ||
| 471. | | 471.4 | ||
| [[21/16]] | | [[17/13]], [[21/16]] | ||
| {{UDnote|step=22}} | | {{UDnote|step=22}} | ||
|- | |- | ||
| 23 | | 23 | ||
| 492. | | 492.9 | ||
| [[4/3]] | | [[4/3]] | ||
| {{UDnote|step=23}} | | {{UDnote|step=23}} | ||
|- | |- | ||
| 24 | | 24 | ||
| 514. | | 514.3 | ||
| [[35/26]] | | [[35/26]] | ||
| {{UDnote|step=24}} | | {{UDnote|step=24}} | ||
|- | |- | ||
| 25 | | 25 | ||
| 535. | | 535.7 | ||
| | | [[15/11]], [[19/14]], [[26/19]], ''[[27/20]]'' | ||
| {{UDnote|step=25}} | | {{UDnote|step=25}} | ||
|- | |- | ||
| 26 | | 26 | ||
| 557. | | 557.1 | ||
| [[11/8]] | | [[11/8]] | ||
| {{UDnote|step=26}} | | {{UDnote|step=26}} | ||
|- | |- | ||
| 27 | | 27 | ||
| 578. | | 578.6 | ||
| [[7/5]] | | [[7/5]] | ||
| {{UDnote|step=27}} | | {{UDnote|step=27}} | ||
|- | |- | ||
| 28 | | 28 | ||
| 600. | | 600.0 | ||
| [[ | | [[17/12]], [[24/17]] | ||
| {{UDnote|step=28}} | | {{UDnote|step=28}} | ||
|- | |- | ||
Line 173: | Line 173: | ||
| … | | … | ||
|} | |} | ||
<nowiki />* The following table assumes the [[patent val]] | <nowiki/>* The following table assumes the 19-limit [[patent val]]; other approaches are possible. Inconsistent intervals are marked in ''italics''. | ||
== Notation == | == Notation == | ||
Line 214: | Line 214: | ||
== Approximation to JI == | == Approximation to JI == | ||
{{Q-odd-limit intervals}} | {{Q-odd-limit intervals}} | ||
== Regular temperament properties == | == Regular temperament properties == | ||
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* [[Supra12]] | * [[Supra12]] | ||
* Subsets of [[echidnic]][16] (6u8d): | * Subsets of [[echidnic]][16] (6u8d): | ||
** Frankincense (this is the original/default tuning): 364.3 - 492.9 - 707.1 - 835.7 - 1200.0 | ** Frankincense{{idio}} (this is the original/default tuning): 364.3 - 492.9 - 707.1 - 835.7 - 1200.0 | ||
** Quasi-[[equipentatonic]]: 257.1 - 492.9 - 707.1 - 964.3 - 1200.0 | ** Quasi-[[equipentatonic]]: 257.1 - 492.9 - 707.1 - 964.3 - 1200.0 | ||
** Sakura-like scale containing [[phi]]: 107.1 - 492.9 - 707.1 - 835.7 - 1200.0 | ** Sakura-like scale containing [[phi]]: 107.1 - 492.9 - 707.1 - 835.7 - 1200.0 | ||
Line 353: | Line 339: | ||
** Evened minor pentatonic (approximated from [[72edo]]): 321.4 - 492.9 - 685.7 - 1028.6 - 1200.0 | ** Evened minor pentatonic (approximated from [[72edo]]): 321.4 - 492.9 - 685.7 - 1028.6 - 1200.0 | ||
== Instruments == | |||
[[Lumatone mapping for 56edo|Lumatone mappings for 56edo]] are available. | |||
== Music == | == Music == | ||
; [[Bryan Deister]] | |||
* [https://www.youtube.com/shorts/o0imqFPDh9k ''56edo''] (2023) | |||
* [https://www.youtube.com/watch?v=xkfao6yGKGE ''Curious Light - DOORS (microtonal cover in 56edo)''] (2025) | |||
* [https://www.youtube.com/watch?v=qzMOnS-lgWs ''Waltz in 56edo''] (2025) | |||
; [[Budjarn Lambeth]] | ; [[Budjarn Lambeth]] | ||
* [https://www.youtube.com/watch?v=VsBXIvBZY6A ''56edo Track (Echidnic16 Scale)''] (2025) | * [https://www.youtube.com/watch?v=VsBXIvBZY6A ''56edo Track (Echidnic16 Scale)''] (2025) | ||
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* [https://www.youtube.com/watch?v=s1h083BRWXU ''Canon 3-in-1 on a Ground''] (2020) | * [https://www.youtube.com/watch?v=s1h083BRWXU ''Canon 3-in-1 on a Ground''] (2020) | ||
[[Category:Hemithirds]] | [[Category:Hemithirds]] | ||
[[Category:Keen]] | [[Category:Keen]] |