Myna: Difference between revisions

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added breed data
Lériendil (talk | contribs)
m replaced quasitemp with superkleismic, since it's generated by 6/5 like myna and demonstrates the keemic equivalence better; also I believe it to be more known than quasitemp
 
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'''Myna''' is a [[rank-2]] [[temperament]] that is [[generator|generated]] by a flattened minor third of [[6/5]], so that seven generators reach [[7/4]], nine reach [[5/4]] and ten reach [[3/2]]. It can be thought of in terms of a series of equidistances between thirds, that is, making [[7/6]] - 6/5 - [[49/40]] - [[5/4]] - [[9/7]] all equidistant (the distances between which are [[36/35]], [[49/48]], and [[50/49]]), or otherwise tuning the pental thirds outwards so that the chroma between them ([[25/24]]) is twice the size of the interval between the pental and septimal thirds, 36/35. This is one of two major options for how to organize septimal harmony in [[EDO]]s of medium size - the other one being [[keemic temperaments]], such as [[superkleismic]], where the gap between 6/5 and 5/4 is compressed to equal that between 7/6 and 6/5 instead of widened to equal twice it. Both have their characteristic sets of damage, but myna leaves space for an exact neutral third in between 6/5 and 5/4; [[11-limit]] myna then arises from equating this neutral third to [[11/9]] and 13-limit myna adds the interpretation of [[16/13]] to it as well.
{{Infobox regtemp
| Title = Myna
| Subgroups = 2.3.5.7, 2.3.5.7.11
| Comma basis = [[126/125]], [[1728/1715]] (7-limit); <br>[[126/125]], [[176/175]], [[243/242]] (11-limit)
| Edo join 1 = 27e | Edo join 2 = 31
| Mapping = 1; 10 9 7 25
| Generators = 6/5 | Generators tuning = 310.1 | Optimization method = CWE
| MOS scales = [[3L 1s]], [[4L 3s]], [[4L 7s]], …, [[4L 23s]], [[27L 4s]]
| Pergen = (P8, ccP5/10)
| Odd limit 1 = 7 | Mistuning 1 = ? | Complexity 1 = 23
| Odd limit 2 = (2.3.5.7.11) 21 | Mistuning 2 = ? | Complexity 2 = 58
}}
'''Myna''' is a [[rank-2]] [[regular temperament|temperament]] that is [[generator|generated]] by a flattened minor third of [[~]][[6/5]], so that seven generators reach [[7/4]], nine reach [[5/4]] and ten reach [[3/2]]. It can be thought of in terms of a series of equidistances between thirds, that is, making [[8/7]]–[[7/6]]–6/5–[[49/40]][[5/4]][[9/7]]–[[21/16]] all equidistant (the distances between which are [[36/35]], [[49/48]], and [[50/49]]), or otherwise tuning the pental thirds outwards so that the chroma between them ([[25/24]]) is twice the size of the interval between the pental and septimal thirds, 36/35. This is one of two major options for how the thirds are organized in [[edo]]s of medium size the other one being [[keemic temperaments]], such as [[superkleismic]], where the gap between 6/5 and 5/4 is compressed to equal that between 7/6 and 6/5 instead of widened to equal twice it. In either case, by tempering the septimal dieses together, there is an exact neutral third in between 6/5 and 5/4. [[11-limit]] myna then arises from equating this neutral third to [[11/9]] and 13-limit myna adds the interpretation of [[16/13]] to it as well.


It can be described as the 27 & 31 temperament; [[27edo]] and [[31edo]] represent natural endpoints of its tuning range, and 27+31 = [[58edo]] and 58+31 = [[89edo]] are very good tunings. In terms of [[commas]], the most characteristic comma that myna [[tempering out|tempers out]] is [[126/125]], the starling comma, so that two generators reach [[10/7]] and four reach the distinctive 36/35[[~]]50/49 chroma. Additionally, {{S|6/S7}} = [[1728/1715]], the orwellisma, is tempered out to equate 36/35 with 49/48, and so is [[2401/2400]], the breedsma, to equate 49/48 and 50/49 (and find a neutral third at 49/40). In the 11-limit, [[243/242]], [[441/440]], and [[540/539]] are tempered out; in the 13-limit, [[144/143]] and [[352/351]] are tempered out.
[[27edo|27e-edo]] and [[31edo]] represent natural endpoints of myna's tuning range, and 27 + 31 = [[58edo]] and 58 + 31 = [[89edo]] are very good tunings. In terms of [[commas]], the most characteristic comma that myna [[tempering out|tempers out]] is [[126/125]], the starling comma, so that two generators reach [[10/7]] and four reach the distinctive 36/35~50/49 chroma. Additionally, [[1728/1715]] ([[S-expression|S6/S7]]), the orwellisma, is tempered out to equate 36/35 with 49/48, and so is [[2401/2400]], the breedsma, to equate 49/48 and 50/49 (and find a neutral third at 49/40~60/49). In the 11-limit, [[176/175]], [[243/242]], [[441/440]], and [[540/539]] are tempered out; in the 13-limit, [[144/143]] and [[352/351]] are additionally tempered out.


Note: "myna" is pronounced /'maɪnə/, like [[Wikipedia:Myna|the bird]], but is also as a pun on "minor".  
Note: "myna" is pronounced /'maɪnə/, like {{w|myna|the bird}}, but is also as a pun on "minor".  


See [[Starling temperaments #Myna]] for more technical data.
See [[Starling temperaments #Myna]] for more technical data.
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{| class="wikitable center-1 right-2"
{| class="wikitable center-1 right-2"
|-
|-
! &#35;
! #
! Cents*
! Cents*
! Approximate Ratios
! Approximate ratios
|-
|-
| 0
| 0
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|-
|-
| 1
| 1
| 310.3
| 310.2
| 6/5
| 6/5
|-
|-
| 2
| 2
| 620.6
| 620.4
| 10/7
| 10/7
|-
|-
| 3
| 3
| 930.8
| 930.7
| 12/7
| 12/7
|-
|-
| 4
| 4
| 41.1
| 40.9
| 36/35, 40/39, 45/44, 49/48, 50/49
| 36/35, 40/39, 45/44, 49/48, 50/49
|-
|-
| 5
| 5
| 351.4
| 351.1
| 11/9, '''16/13'''
| 11/9, '''16/13'''
|-
|-
| 6
| 6
| 661.7
| 661.3
| 22/15, 35/24
| 22/15, 35/24
|-
|-
| 7
| 7
| 971.9
| 971.6
| '''7/4'''
| '''7/4'''
|-
|-
| 8
| 8
| 82.2
| 81.8
| 21/20, 22/21, 25/24
| 21/20, 22/21, 25/24
|-
|-
| 9
| 9
| 392.5
| 392.0
| '''5/4'''
| '''5/4'''
|-
|-
| 10
| 10
| 702.8
| 702.2
| '''3/2'''
| '''3/2'''
|-
|-
| 11
| 11
| 1013.0
| 1012.4
| 9/5
| 9/5
|-
|-
| 12
| 12
| 123.3
| 122.7
| 14/13, 15/14, 27/25
| 14/13, 15/14, 27/25
|-
|-
| 13
| 13
| 433.6
| 432.7
| 9/7
| 9/7
|-
|-
| 14
| 14
| 743.9
| 743.1
| 20/13
| 20/13
|-
|-
| 15
| 15
| 1054.1
| 1053.3
| 11/6, 24/13
| 11/6, 24/13
|-
|-
| 16
| 16
| 164.4
| 163.5
| 11/10
| 11/10
|-
|-
| 17
| 17
| 474.7
| 473.8
| 21/16
| 21/16
|-
|-
| 18
| 18
| 785.0
| 784.0
| 11/7
| 11/7
|-
|-
| 19
| 19
| 1095.3
| 1094.2
| 15/8
| 15/8
|-
|-
| 20
| 20
| 205.5
| 204.4
| 9/8
| 9/8
|-
|-
| 21
| 21
| 515.8
| 514.7
| 27/20
| 27/20
|-
|-
| 22
| 22
| 826.1
| 824.9
| 21/13
| 21/13
|-
|-
| 23
| 23
| 1136.4
| 1135.1
| 27/14
| 27/14
|-
|-
| 24
| 24
| 246.6
| 245.3
| 15/13
| 15/13
|-
|-
| 25
| 25
| 556.9
| 555.5
| '''11/8''', 18/13
| '''11/8''', 18/13
|-
|-
| 26
| 26
| 867.1
| 865.6
| 33/20
| 33/20
|-
|-
| 27
| 27
| 1177.5
| 1176.0
| 55/28, 63/32, 77/39, 99/50
| 55/28, 63/32, 77/39, 99/50
|}
|}
<nowiki />* In 13-limit POTE tuning
<nowiki/>* In 13-limit CWE tuning


== Chords ==
== Chords and harmony ==
{{main| Chords of myna }}
{{See also| Chords of myna | Chords of tridecimal myna }}


== Scales ==
== Scales ==
; MOS scales
; Mos scales
* [[Myna7]]
* [[Myna7]]
* [[Myna11]]
* [[Myna11]]
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* [[Myna27trans37]]
* [[Myna27trans37]]


== Tuning spectrum ==
== Tunings ==
{| class="wikitable center-all"
=== Tuning spectrum ===
{| class="wikitable center-all left-4"
|-
|-
! ET<br />generator
! Edo<br>generator
! [[Eigenmonzo|Eigenmonzo<br />(unchanged-interval)]])
! [[Eigenmonzo|Eigenmonzo<br>(unchanged interval)]]
! Minor<br />third (¢)
! Generator (¢)
! Comments
! Comments
|-
|-
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|-
|-
|  
|  
| 8/7
| 7/4
| 309.832
| 309.832
|  
|  
|-
|-
|  
|  
| 16/15
| 15/8
| 309.909
| 309.909
|  
|  
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|-
|-
|  
|  
| 12/11
| 11/6
| 309.958
| 309.958
|  
|  
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|  
|  
| 310.112
| 310.112
|  
| 89f val
|-
|-
|  
|  
| 14/11
| 11/7
| 310.138
| 310.138
|  
|  
|-
|-
|  
|  
| 4/3
| 3/2
| 310.196
| 310.196
| 5-, 7-, 9- and 11-odd-imit minimax; <br>5-, 7-, 11- and 13-limit POTT
| 5-, 7-, 9- and 11-odd-imit minimax; <br>5-, 7-, 11- and 13-limit POTT
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|-
|-
|  
|  
| 18/13
| 13/9
| 310.535
| 310.535
|  
|  
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|  
|  
| 310.588
| 310.588
|  
| 85ce val
|-
|-
|  
|  
| 10/9
| 9/5
| 310.691
| 310.691
|  
|  
|-
|-
|  
|  
| 14/13
| 13/7
| 310.692
| 310.692
|  
|  
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|  
|  
| 311.111
| 311.111
|  
| 27e val
|-
|-
|  
|  
| 16/13
| 13/8
| 311.894
| 311.894
|  
|  
|-
|-
|  
|  
| 6/5
| 5/3
| 315.641
| 315.641
|  
|  
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== Music ==
== Music ==
* ''[http://clones.soonlabel.com/public/micro/gene_ward_smith/Others/Igs/89versionof23Myna.mp3 Myna Music]'' by [[Igliashon Jones]]
; [[Igliashon Jones]]
* [https://web.archive.org/web/20201129182056/http://clones.soonlabel.com/public/micro/gene_ward_smith/Others/Igs/89versionof23Myna.mp3 ''Myna Music'']


[[Category:Myna| ]] <!-- Main article -->
[[Category:Myna| ]] <!-- Main article -->

Latest revision as of 06:29, 14 May 2026

Myna
Subgroups 2.3.5.7, 2.3.5.7.11
Comma basis 126/125, 1728/1715 (7-limit);
126/125, 176/175, 243/242 (11-limit)
Reduced mapping ⟨1; 10 9 7 25]
ET join 27e & 31
Generators (CWE) ~6/5 = 310.1 ¢
MOS scales 3L 1s, 4L 3s, 4L 7s, …, 4L 23s, 27L 4s
Ploidacot beta-decacot
Pergen (P8, ccP5/10)
Minimax error 7-odd-limit: ? ¢;
(2.3.5.7.11) 21-odd-limit: ? ¢
Target scale size 7-odd-limit: 23 notes;
(2.3.5.7.11) 21-odd-limit: 58 notes

Myna is a rank-2 temperament that is generated by a flattened minor third of ~6/5, so that seven generators reach 7/4, nine reach 5/4 and ten reach 3/2. It can be thought of in terms of a series of equidistances between thirds, that is, making 8/77/6–6/5–49/405/49/721/16 all equidistant (the distances between which are 36/35, 49/48, and 50/49), or otherwise tuning the pental thirds outwards so that the chroma between them (25/24) is twice the size of the interval between the pental and septimal thirds, 36/35. This is one of two major options for how the thirds are organized in edos of medium size – the other one being keemic temperaments, such as superkleismic, where the gap between 6/5 and 5/4 is compressed to equal that between 7/6 and 6/5 instead of widened to equal twice it. In either case, by tempering the septimal dieses together, there is an exact neutral third in between 6/5 and 5/4. 11-limit myna then arises from equating this neutral third to 11/9 and 13-limit myna adds the interpretation of 16/13 to it as well.

27e-edo and 31edo represent natural endpoints of myna's tuning range, and 27 + 31 = 58edo and 58 + 31 = 89edo are very good tunings. In terms of commas, the most characteristic comma that myna tempers out is 126/125, the starling comma, so that two generators reach 10/7 and four reach the distinctive 36/35~50/49 chroma. Additionally, 1728/1715 (S6/S7), the orwellisma, is tempered out to equate 36/35 with 49/48, and so is 2401/2400, the breedsma, to equate 49/48 and 50/49 (and find a neutral third at 49/40~60/49). In the 11-limit, 176/175, 243/242, 441/440, and 540/539 are tempered out; in the 13-limit, 144/143 and 352/351 are additionally tempered out.

Note: "myna" is pronounced /'maɪnə/, like the bird, but is also as a pun on "minor".

See Starling temperaments #Myna for more technical data.

Interval chain

In the following table, prime harmonics are in bold.

# Cents* Approximate ratios
0 0.0 1/1
1 310.2 6/5
2 620.4 10/7
3 930.7 12/7
4 40.9 36/35, 40/39, 45/44, 49/48, 50/49
5 351.1 11/9, 16/13
6 661.3 22/15, 35/24
7 971.6 7/4
8 81.8 21/20, 22/21, 25/24
9 392.0 5/4
10 702.2 3/2
11 1012.4 9/5
12 122.7 14/13, 15/14, 27/25
13 432.7 9/7
14 743.1 20/13
15 1053.3 11/6, 24/13
16 163.5 11/10
17 473.8 21/16
18 784.0 11/7
19 1094.2 15/8
20 204.4 9/8
21 514.7 27/20
22 824.9 21/13
23 1135.1 27/14
24 245.3 15/13
25 555.5 11/8, 18/13
26 865.6 33/20
27 1176.0 55/28, 63/32, 77/39, 99/50

* In 13-limit CWE tuning

Chords and harmony

Scales

Mos scales
Transversal scales

Tunings

Tuning spectrum

Edo
generator
Eigenmonzo
(unchanged interval)
Generator (¢) Comments
7/5 308.744
11/9 309.482
5/4 309.590
8\31 309.677
7/4 309.832
15/8 309.909
15/14 309.953
11/6 309.958
11/8 310.053
23\89 310.112 89f val
11/7 310.138
3/2 310.196 5-, 7-, 9- and 11-odd-imit minimax;
5-, 7-, 11- and 13-limit POTT
11/10 310.313
15/13 310.323 15-odd-limit minimax
15\58 310.345
13/11 310.360 13-odd-limit minimax
9/7 310.391
13/10 310.413
15/11 310.508
13/9 310.535
22\85 310.588 85ce val
9/5 310.691
13/7 310.692
13/12 310.762
7/6 311.043
7\27 311.111 27e val
13/8 311.894
5/3 315.641

Music

Igliashon Jones