Magic: Difference between revisions
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{{ | {{Interwiki | ||
| en = Magic | |||
| de = Magische Temperaturen | | de = Magische Temperaturen | ||
| es = | | es = | ||
| ja = マジック | | ja = マジック | ||
| Line 8: | Line 8: | ||
| Title = Magic | | Title = Magic | ||
| Subgroups = 2.3.5, 2.3.5.7 | | Subgroups = 2.3.5, 2.3.5.7 | ||
| Comma basis = [[3125/3072]] ( | | Comma basis = [[3125/3072]] (5-limit); <br>[[225/224]], [[245/243]] (7-limit) | ||
| | | Edo join 1 = 19 | Edo join 2 = 22 | ||
| Mapping = 1; 5 1 12 | | Mapping = 1; 5 1 12 | ||
| Generators = 5/4 | |||
| Generators tuning = 380.5 | |||
| Optimization method = CWE | |||
| Pergen = (P8, P12/5) | | Pergen = (P8, P12/5) | ||
| Color name = Laquinyoti | | Color name = Laquinyoti | ||
| MOS scales = [[3L 4s]], [[3L 7s]], …, [[3L 16s]], [[19L 3s]] | | MOS scales = [[3L 4s]], [[3L 7s]], …, [[3L 16s]], [[19L 3s]] | ||
| Odd limit 1 = 5 | Mistuning 1 = 5.9 | Complexity 1 = | | Odd limit 1 = 5 | Mistuning 1 = 5.9 | Complexity 1 = 7 | ||
| Odd limit 2 = 9 | Mistuning 2 = 5.9 | Complexity 2 = | | Odd limit 2 = 9 | Mistuning 2 = 5.9 | Complexity 2 = 13 | ||
}} | }} | ||
{{Wikipedia| Magic temperament }} | {{Wikipedia| Magic temperament }} | ||
'''Magic''' is a [[ | '''Magic''' is a [[regular temperament|temperament]] in which the ~380 cent [[generator]] represents [[5/4]], and five of those make a [[3/1]]. This implies that the magic comma [[3125/3072]] is [[tempering out|tempered out]], making it a member of the [[magic family]]. This article also assumes the default mapping for the [[prime interval|prime]] [[7/1|7]], which makes two generators equivalent to [[14/9]] by tempering out [[225/224]]. [[7/4]] can be reached by 12 generators in this mapping. (There is an alternative mapping for 7 known as [[muggles]], which may be better melodically for small [[mos scale]]s due to the smaller generator making the small step a bit larger, but there is little reason to use it unless you are using [[19edo]], in which case it is identical to magic anyway.) | ||
Edos that contain good magic scales include [[19edo]], [[22edo]], [[41edo]], [[60edo]], [[63edo]] and [[104edo]]. | Edos that contain good magic scales include [[19edo]], [[22edo]], [[41edo]], [[60edo]], [[63edo]] and [[104edo]]. | ||
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Magic has certain properties that commend it as a step up in complexity from traditional harmony: | Magic has certain properties that commend it as a step up in complexity from traditional harmony: | ||
* It is the simplest mapping capable of tuning every [[9-odd-limit]] interval better than in [[12edo]]. | * It is the simplest mapping capable of tuning every [[9-odd-limit]] interval better than in [[12edo]]. | ||
* It is only slightly more complex than meantone (both work well with a 19 note gamut). | * It is only slightly more complex than [[septimal meantone]] (both work well with a 19-note gamut). | ||
* 5-limit intervals are simpler than | * 5-limit intervals are generally simpler than 7-limit intervals. | ||
It is not a panacea because: | It is not a panacea because: | ||
* It has no proper mos scales with between 3 and 16 notes over a single period per octave. | * It has no [[Rothenberg propriety|proper]] mos scales with between 3 and 16 notes over a single period per octave. | ||
* It is more complex than meantone (higher complexity and badness). | * It is more complex than meantone (higher [[complexity]] and [[badness]]). | ||
* The 3/2 approximation is 5 times as complex as the 5/4 approximation (the generator) so modulation by fifths is more constrained than you may be used to. | * The 3/2 approximation is 5 times as complex as the 5/4 approximation (the generator) so modulation by fifths is more constrained than you may be used to. | ||
For technical information, see [[Magic family #Magic]]. For a discussion on alternative 11- and 13-limit extensions, see [[Magic extensions]]. | For technical information, see [[Magic family #Magic]]. For a discussion on alternative 11- and 13-limit extensions, see [[Magic extensions]]. | ||
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| 3 | | 3 | ||
| 1141.4 | | 1141.4 | ||
| 27/14 | | 27/14, 35/18, 48/25 | ||
|- | |- | ||
| 4 | | 4 | ||
| Line 87: | Line 80: | ||
| 8 | | 8 | ||
| 643.7 | | 643.7 | ||
| (13/9, '''16/11''') | | 35/24, (13/9, '''16/11''') | ||
|- | |- | ||
| 9 | | 9 | ||
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| 13 | | 13 | ||
| 145.9 | | 145.9 | ||
| (12/11, 13/12) | | 35/32, (12/11, 13/12) | ||
|} | |} | ||
<nowiki/>* In 7-limit CWE tuning | <nowiki/>* In 7-limit CWE tuning | ||
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== Chords and harmony == | == Chords and harmony == | ||
{{ | {{See also| Chords of magic | Functional harmony in rank-2 temperaments }} | ||
The fundamental otonal consonance of magic, voiced in a roughly {{w|tertian harmony|tertian}} manner, is 4:5:6:7:9, available in a 13-tone mos. To start with, consider the the just major triad (1–5/4–3/2) and just minor triad (1–6/5–3/2). In terms of generator steps, they are 0–1–5 and 0–4–5; this is similar, but also in clear contrast to the 0–4–1 and 0–(−3)–1 of [[meantone]]. Two approaches to functional harmony thus arise. | The fundamental otonal consonance of magic, voiced in a roughly {{w|tertian harmony|tertian}} manner, is 4:5:6:7:9, available in a 13-tone mos. To start with, consider the the just major triad (1–5/4–3/2) and just minor triad (1–6/5–3/2). In terms of generator steps, they are 0–1–5 and 0–4–5; this is similar, but also in clear contrast to the 0–4–1 and 0–(−3)–1 of [[meantone]]. Two approaches to functional harmony thus arise. | ||
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{{See also| Magic Tetrachords }} | {{See also| Magic Tetrachords }} | ||
Because the generator is so close to 1/3 of an octave, and the interval left over is accordingly so small, all small magic mos scales consist of three large intervals alternating with three groups of this small interval. Specifically, there are the following scales, where s always represents the characteristic small interval, which simultaneously represents [[128/125]], [[36/35]], [[28/27]], and [[25/24]], as well as [[33/32]] and [[27/26]] in tridecimal magic. | |||
* [[3L 4s]]: LsLsLss, where L represents 6/5; | |||
* [[3L 7s]]: LssLssLsss, where L represents 7/6; | |||
* [[3L 10s]]: LsssLsssLssss, where L represents 9/8; | |||
* [[3L 13s]]: LssssLssssLsssss, where L represents [[12/11]]~[[13/12]] in tridecimal magic. | |||
=== Scala files === | |||
; Mos scales | ; Mos scales | ||
* [[Magic7]] – improper | * [[Magic7]] – improper 3L 4s | ||
* [[Magic10]] – improper | * [[Magic10]] – improper 3L 7s | ||
* [[Magic13]] – improper | * [[Magic13]] – improper 3L 10s | ||
* [[Magic16]] – improper | * [[Magic16]] – improper 3L 13s. The boundary of propriety is 19edo. | ||
* [[Magic19]] – proper [[3L 16s]]. The boundary of propriety is 22edo. | * [[Magic19]] – proper [[3L 16s]]. The boundary of propriety is 22edo. | ||
* [[Magic22]] – [[19L 3s]] | * [[Magic22]] – [[19L 3s]]. The boundary of propriety is 41edo. | ||
; Transversal scales | ; Transversal scales | ||
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! Comments | ! Comments | ||
|- | |- | ||
|[[16edo|5\16]] | | [[16edo|5\16]] | ||
| | | | ||
|375.000 | | 375.000 | ||
| Flatter tunings may be analysed as [[submerged]] | |||
|- | |||
| | | | ||
| [[25/24]] | |||
| 376.443 | |||
| 1/3-comma | |||
|- | |- | ||
| | | | ||
|[[ | | [[125/72]] | ||
| | | 377.853 | ||
| | | 2/7-comma | ||
|- | |- | ||
| | | | ||
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| [[9/5]] | | [[9/5]] | ||
| 379.733 | | 379.733 | ||
| | | 2/9-comma | ||
|- | |- | ||
| [[60edo|19\60]] | | [[60edo|19\60]] | ||
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| 380.769 | | 380.769 | ||
| | | | ||
|- | |||
| | |||
| [[45/32]] | |||
| 380.929 | |||
| 2/11-comma | |||
|- | |- | ||
| [[63edo|20\63]] | | [[63edo|20\63]] | ||
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|- | |- | ||
| | | | ||
|[[75/64]] | | [[75/64]] | ||
|382.083 | | 382.083 | ||
|1/7-comma | | 1/7-comma | ||
|- | |- | ||
| | | | ||
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| | | | ||
|- | |- | ||
|[[25edo|8\25]] | | [[25edo|8\25]] | ||
| | | | ||
|384.000 | | 384.000 | ||
| | | Sharper tunings may be analysed as [[anthoine]] | ||
|- | |- | ||
| | | | ||
| [[5/4]] | | [[5/4]] | ||
| 386.314 | | 386.314 | ||
| | | Untempered | ||
|} | |} | ||
<nowiki/> * Besides the octave | <nowiki/> * Besides the octave | ||
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* [[Lumatone mapping for magic]] | * [[Lumatone mapping for magic]] | ||
* [[5edt]], an equal tuning in which a stack of five ~5/4's is exactly 3/1 | * [[5edt]], an equal tuning in which a stack of five ~5/4's is exactly 3/1 | ||
* [[Marvel–sensamagic equivalence continuum]] – equivalence continuum of septimal magic | |||
== External links == | == External links == | ||