Myna: Difference between revisions
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'''Myna''' is | {{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 = 27 | Edo join 2 = 31 | |||
| Generator = 6/5 | Generator tuning = 310.1 | Optimization method = POTE | |||
| MOS scales = [[3L 1s]], [[4L 3s]], [[4L 7s]], ... [[4L 23s]], [[27L 4s]] | |||
| Mapping = 1; 10 9 7 25 | |||
| 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]] [[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]] and [[magic]], 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. | |||
It can be described as the 27e & 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, [[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 [[Wikipedia:Myna|the bird]], but is also as a pun on "minor". | ||
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== Chords == | == Chords == | ||
: ''Main article: [[Chords of myna]] and [[Chords of tridecimal myna]]'' | |||
== Scales == | == Scales == | ||
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|- | |- | ||
! ET<br />generator | ! ET<br />generator | ||
! [[Eigenmonzo|Eigenmonzo<br />(unchanged | ! [[Eigenmonzo|Eigenmonzo<br />(unchanged interval)]]) | ||
! Minor<br />third (¢) | ! Minor<br />third (¢) | ||
! Comments | ! Comments | ||
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* ''[http://clones.soonlabel.com/public/micro/gene_ward_smith/Others/Igs/89versionof23Myna.mp3 Myna Music]'' by [[Igliashon Jones]] | * ''[http://clones.soonlabel.com/public/micro/gene_ward_smith/Others/Igs/89versionof23Myna.mp3 Myna Music]'' by [[Igliashon Jones]] | ||
[[Category:Myna| ]] <!-- Main article --> | [[Category:Myna| ]] <!-- Main article --> | ||
[[Category:Rank-2 temperaments]] | |||
[[Category:Starling temperaments]] | [[Category:Starling temperaments]] | ||
[[Category:Orwellismic temperaments]] | [[Category:Orwellismic temperaments]] | ||
[[Category:Breedsmic temperaments]] | [[Category:Breedsmic temperaments]] |