Magic family: Difference between revisions
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| de = Magische Temperaturen | |||
| en = Magic family | |||
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{{Technical data page}} | |||
The '''magic family''' of temperaments tempers out [[3125/3072]], the small diesis or magic comma. The septimal version of magic is locally optimal, for some searches, in the [[9-odd-limit]]. Magic has a slightly higher complexity than [[meantone]] but it is closer to just intonation. It is the simplest rank-2 temperament that tunes every [[9-odd-limit]] interval better than is possible in [[12edo]]. The most prominent deficiency is that it lacks [[Rothenberg propriety|proper]] or nearly-proper [[mos scale]]s in the 5- to 10-note region. Properties may depend on tuning and extension. | |||
== Magic == | |||
{{Main| Magic }} | |||
The [[generator]] of magic is a major third, and to get to the interval class of fifths requires five of these. In fact, (5/4)<sup>5</sup> = 3 × 3125/3072. [[41edo|13\41]] is a highly recommendable generator, though [[60edo|19\60]], the [[optimal patent val]] generator, also makes a lot of sense, and using [[19edo]] or [[22edo]] is always possible. | |||
The | |||
[[ | [[Subgroup]]: 2.3.5 | ||
[[Comma list]]: 3125/3072 | |||
[[ | |||
{{Mapping|legend=1| 1 0 2 | 0 5 1 }} | |||
: mapping generators: ~2, ~5/4 | |||
== | [[Optimal tuning]]s: | ||
* [[WE]]: ~2 = 1201.2449{{c}}, ~5/4 = 380.4527{{c}} | |||
: [[error map]]: {{val| +1.245 +0.309 -3.371 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~5/4 = 380.2194{{c}} | |||
: error map: {{val| 0.000 -0.858 -6.094 }} | |||
[[Minimax tuning]]: | |||
* [[5-odd-limit]]: ~5/4 = {{monzo| 0 1/5 0 }} | |||
: [[eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.3 | |||
[[Tuning ranges]]: | |||
* 5-odd-limit [[diamond monotone]]: ~5/4 = [360.000, 400.000] (3\10 to 1\3) | |||
* 5-odd-limit [[diamond tradeoff]]: ~5/4 = [378.910, 386.314] (1/4-comma to untempered) | |||
[[Algebraic generator]]: Terzbirat, the positive root of 9''x''<sup>2</sup> - 8''x'' - 4 = (4 + 2√13)/9; approximately 380.3175 [[cent]]s. | |||
{{Optimal ET sequence|legend=1| 3, 13b, 16, 19, 41, 60, 221cc, 281cc }} | |||
[[Badness]] (Sintel): 0.919 | |||
=== Overview to extensions === | |||
Apart from magic, we also consider other extensions. The second comma of the [[Normal lists #Normal interval list|normal comma list]] defines which 7-limit family member we are looking at. [[875/864]], the keemic comma, gives septimal magic, and [[525/512]], Avicenna's enharmonic diesis, gives his annoying brother muggles. Both use the major third as a generator, as well as low-accuracy extensions including darkstone and brightstone. | |||
Weak extensions considered below are hocum, trismegistus, quadrimage, quinmage and warlock. Discussed elsewhere are | |||
[| | * ''[[Astrology]]'' → [[Jubilismic clan #Astrology|Jubilismic clan]] | ||
[[ | * ''[[Spell]]'' → [[Hemimean clan #Spell|Hemimean clan]] | ||
== Septimal magic == | |||
{{Main| Magic }} | |||
Septimal magic tempers out not only 3125/3072 and 875/864, but also [[225/224]], [[245/243]], and [[10976/10935]]. [[41edo]] is a good magic tuning, and 19- or 22-note mosses are possible scales. Five major thirds approximate 3/1. Twelve major thirds, less an octave, approximate 7/1. | |||
This temperament, with its accurate fifths, works well with [[9-odd-limit]] harmony. It is more accurate than [[meantone]] and simpler than [[garibaldi]]. It is a little tricky to work with because its fifths are a relatively complex interval and it does not naturally work with scales of around seven notes to the octave. | |||
[[ | |||
225/224 is the [[marvel family|marvel]] comma. Because the augmented triad is the simplest triad in magic temperaments, it is especially significant in magic temperament. 245/243, the [[sensamagic family|sensamagic]] comma, leads to another essentially tempered 9-odd-limit triad with two thirds approximating 9/7 and the other 6/5. It also divides the approximate 3/2 into two steps of 7/6 and one of 10/9. | |||
By adding [[100/99]] and [[105/104]] to the list of commas, magic can be extended to the 11-limit and 13-limit. 11-limit magic allows for a tritone substitution where the extended 5-limit tuning of a dominant seventh with a 9/5 above the root shares its tritone with an 8:10:11:12:16 chord rooted on the seventh of the original chord. For this, [[104edo]] provides an excellent tuning, as it does also for the rank-3 temperaments tempering out 100/99 with 225/224, 245/243 or 875/864. Septimage (see below) is also an excellent 11-limit magic tuning. For the 13-limit, 41edo makes for a recommendable tuning. | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 225/224, 245/243 | |||
{{Mapping|legend=1| 1 0 2 -1 | 0 5 1 12 }} | |||
: mapping generators: ~2, ~5/4 | |||
[[Optimal tuning]]s: | |||
* [[WE]]: ~2 = 1201.0786{{c}}, ~5/4 = 380.6939{{c}} | |||
: [[error map]]: {{val| +1.079 +1.514 -3.463 -1.578 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~5/4 = 380.4576{{c}} | |||
: error map: {{val| 0.000 +0.333 -5.856 -3.335 }} | |||
[[Minimax tuning]]: | |||
* 7- and [[9-odd-limit]]: ~5/4 = {{monzo| 0 1/5 0 0 }} | |||
: [[eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.3 | |||
[[Tuning ranges]]: | |||
* 7- and 9-odd-limit [[diamond monotone]]: ~5/4 = [378.947, 381.818] (6\19 to 7\22) | |||
* 7- and 9-odd-limit [[diamond tradeoff]]: ~5/4 = [378.910, 386.314] (1/4-comma to untempered) | |||
[[Algebraic generator]]: Tirzbirat or Septimage, the real root of 5''x''<sup>5</sup> + 4''x'' - 20, 380.7604 cents. | |||
= | {{Optimal ET sequence|legend=1| 19, 41, 142cd, 183cd, 224ccd }} | ||
[[Badness]] (Sintel): 0.479 | |||
=== 11-limit === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 100/99, 225/224, 245/243 | |||
Mapping: {{mapping| 1 0 2 -1 6 | 0 5 1 12 -8 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.1372{{c}}, ~5/4 = 380.7399{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.7008{{c}} | |||
Minimax tuning: | |||
* 11-odd-limit: ~5/4 = {{monzo| 1/3 1/9 0 0 -1/18 }} | |||
: unchanged-interval (eigenmonzo) basis: 2.11/9 | |||
Tuning ranges: | |||
* 11-odd-limit diamond monotone: ~5/4 = [378.947, 381.818] (6\19 to 7\22) | |||
* 11-odd-limit diamond tradeoff: ~5/4 = [378.910, 386.314] (1/4-comma to untempered) | |||
{{Optimal ET sequence|legend=0| 19, 22, 41, 104 }} | |||
Badness (Sintel): 0.673 | |||
==== 13-limit ==== | |||
A notable [[patent val]] tuning beyond the [[optimal patent val]] of 41edo is [[19edo|19]] + [[41edo|41]] = [[60edo]]. | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 100/99, 105/104, 144/143, 196/195 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 | 0 5 1 12 -8 18 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.0331{{c}}, ~5/4 = 380.4377{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.4284{{c}} | |||
Tuning ranges: | |||
* 13- and 15-odd-limit diamond monotone: ~5/4 = [378.947, 381.818] (6\19 to 7\22) | |||
* 13- and 15-odd-limit diamond tradeoff: ~5/4 = [378.617, 386.314] | |||
{{Optimal ET sequence|legend=0| 19, 22f, 41 }} | |||
Badness (Sintel): 0.889 | |||
Badness: 0. | |||
== | ===== Magical ===== | ||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 100/99, 105/104, 120/119, 144/143, 154/153 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 6 | 0 5 1 12 -8 18 -6 }} | |||
= | Optimal tunings: | ||
* WE: ~2 = 1199.3584{{c}}, ~5/4 = 380.4006{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.5896{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 22f, 41 }} | |||
Badness (Sintel): 1.05 | |||
= | ====== Magicus ====== | ||
Subgroup: 2.3.5.7.11.13.17.19 | |||
Comma list: 100/99, 105/104, 120/119, 133/132, 144/143, 154/153 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 6 9 | 0 5 1 12 -8 18 -6 -15 }} | |||
== | Optimal tunings: | ||
* WE: ~2 = 1199.7173{{c}}, ~5/4 = 380.3808{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.4680{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 41 }} | |||
Badness (Sintel): 1.27 | |||
= | ====== Magica ====== | ||
Subgroup: 2.3.5.7.11.13.17.19 | |||
Comma list: 100/99, 105/104, 120/119, 144/143, 154/153, 171/169 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 6 -4 | 0 5 1 12 -8 18 -6 26 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.3670{{c}}, ~5/4 = 380.4681{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.6541{{c}} | |||
= | {{Optimal ET sequence|legend=0| 22fh, 41 }} | ||
Badness (Sintel): 1.21 | |||
===== Magia ===== | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 100/99, 105/104, 144/143, 170/169, 196/195 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 -7 | 0 5 1 12 -8 18 35 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.1727{{c}}, ~5/4 = 380.2982{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.2483{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19g, 41, 60 }} | ||
Badness (Sintel): 1.34 | |||
====== 19-limit ====== | |||
Subgroup: 2.3.5.7.11.13.17.19 | |||
Comma list: 100/99, 105/104, 144/143, 170/169, 171/169, 196/195 | |||
Mapping: {{mapping| 1 0 2 -1 6 -2 -7 -4 | 0 5 1 12 -8 18 35 26 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.2179{{c}}, ~5/4 = 380.3942{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.3314{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19gh, 41 }} | ||
Badness (Sintel): 1.44 | |||
===== Evening ===== | |||
Evening is a remarkable subgroup temperament of {{nowrap| 19 & 22f }} with prime harmonics of 29 and 31. | |||
Subgroup: 2.3.5.7.11.13.29.31 | |||
Comma list: 100/99, 105/104, 144/143, 145/144, 155/154, 196/195 | |||
Subgroup-val mapping: {{mapping| 1 0 2 -1 6 -2 2 4 | 0 5 1 12 -8 18 9 3 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.2802{{c}}, ~5/4 = 380.5053{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.4258{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19, 22f, 41 }} | ||
Badness (Sintel): 0.807 | |||
==== Sorcery ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 65/64, 78/77, 91/90, 100/99 | |||
Mapping: {{mapping| 1 0 2 -1 6 4 | 0 5 1 12 -8 -1 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1201.2397{{c}}, ~5/4 = 380.8698{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.5080{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19, 22, 41f }} | ||
Badness (Sintel): 1.07 | |||
==== Necromancy ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 100/99, 225/224, 245/243, 275/273 | |||
Mapping: {{mapping| 1 0 2 -1 6 11 | 0 5 1 12 -8 -23 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.9675{{c}}, ~5/4 = 380.7770{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.7874{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19f, 22, 41, 63, 104 }} | ||
Badness (Sintel): 1.04 | |||
===== 17-limit ===== | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 100/99, 120/119, 154/153, 225/224, 273/272 | |||
Mapping: {{mapping| 1 0 2 -1 6 11 6 | 0 5 1 12 -8 -23 -6 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.6176{{c}}, ~5/4 = 380.7053{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.8280{{c}} | |||
= | {{Optimal ET sequence|legend=0| 19f, 22, 41, 63 }} | ||
Badness (Sintel): 1.12 | |||
==== Soothsaying ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 100/99, 225/224, 245/243, 1352/1331 | |||
Mapping: {{mapping| 2 0 4 -2 12 15 | 0 5 1 12 -8 -12 }} | |||
Optimal tunings: | |||
* WE: ~55/39 = 600.2918{{c}}, ~5/4 = 380.6928{{c}} | |||
* CWE: ~55/39 = 600.0000{{c}}, ~5/4 = 380.5121{{c}} | |||
= | {{Optimal ET sequence|legend=0| 22, 60, 82 }} | ||
Badness (Sintel): 2.29 | |||
===== 17-limit ===== | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 100/99, 221/220, 225/224, 245/243, 273/272 | |||
Mapping: {{mapping| 2 0 4 -2 12 15 5 | 0 5 1 12 -8 -12 5 }} | |||
Optimal tunings: | |||
* WE: ~17/12 = 600.2918{{c}}, ~5/4 = 380.6927{{c}} | |||
* CWE: ~17/12 = 600.0000{{c}}, ~5/4 = 380.5135{{c}} | |||
= | {{Optimal ET sequence|legend=0| 22, 60, 82 }} | ||
Badness (Sintel): 1.82 | |||
===== 19-limit ===== | |||
Subgroup: 2.3.5.7.11.13.17.19 | |||
Comma list: 100/99, 133/132, 221/220, 225/224, 245/243, 273/272 | |||
Mapping: {{mapping| 2 0 4 -2 12 15 5 18 | 0 5 1 12 -8 -12 5 -15 }} | |||
Optimal tunings: | |||
* WE: ~17/12 = 600.3301{{c}}, ~5/4 = 380.6797{{c}} | |||
* CWE: ~17/12 = 600.0000{{c}}, ~5/4 = 380.4704{{c}} | |||
= | {{Optimal ET sequence|legend=0| 22, 60, 82 }} | ||
Badness (Sintel): 1.90 | |||
=== Telepathy === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 55/54, 99/98, 176/175 | |||
Mapping: {{mapping| 1 0 2 -1 -1 | 0 5 1 12 14 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.7724{{c}}, ~5/4 = 381.2641{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 381.0913{{c}} | |||
{{Optimal ET sequence|legend=0| 19e, 22, 41e, 63e }} | |||
Badness (Sintel): 0.896 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 55/54, 65/64, 91/90, 99/98 | |||
Mapping: {{mapping| 1 0 2 -1 -1 4 | 0 5 1 12 14 -1 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1202.5634{{c}}, ~5/4 = 381.3348{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.6886{{c}} | |||
{{Optimal ET sequence|legend=0| 19e, 22, 41ef }} | |||
Badness (Sintel): 1.05 | |||
==== Intuition ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 55/54, 66/65, 99/98, 105/104 | |||
Mapping: {{mapping| 1 0 2 -1 -1 -2 | 0 5 1 12 14 18 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1201.3172{{c}}, ~5/4 = 380.9004{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 380.5942{{c}} | |||
{{Optimal ET sequence|legend=0| 19e, 22f }} | |||
Badness (Sintel): 1.08 | |||
=== Horcrux === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 45/44, 56/55, 245/243 | |||
Mapping: {{mapping| 1 0 2 -1 0 | 0 5 1 12 11 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1200.4670{{c}}, ~5/4 = 379.7895{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~5/4 = 379.6889{{c}} | |||
{{Optimal ET sequence|legend=0| 3de, 16d, 19 }} | |||
Badness (Sintel): 1.30 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 45/44, 56/55, 78/77 | |||