Würschmidt: Difference between revisions
I don't see why negative steps are included nor why they're not shown up to the same number as the positive steps. -table note template in favor of plain notes. There's also way too many bolded stuff |
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'''Würschmidt''' is a [[rank-2 temperament|rank-2]] [[regular temperament|temperament]] and parent of the [[würschmidt family]], characterized by tempering out the würschmidt comma, | '''Würschmidt''' is a [[rank-2 temperament|rank-2]] [[regular temperament|temperament]] and parent of the [[würschmidt family]], characterized by tempering out the würschmidt comma, [[393216/390625]]. It can be treated as analogous to [[schismatic]] with the roles of the primes 3 and 5 reversed, since würschmidt is [[generator|generated]] by a [[5/4|classical major third (5/4)]], very slightly sharpened so that eight of them make the sixth harmonic ([[6/1]]), giving [[3/2]] the same complexity [[5/4]] does in schismatic, but with comparable accuracy on the part of the generator. Four generators, therefore, reach the interval [[625/512]], which is equated to [[768/625]] and functions as a neutral third. | ||
{{ | {{Tdlink|Würschmidt family #Würschmidt}} | ||
== Extensions == | == Extensions == | ||
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Therefore, it may be advisable to consider würschmidt a no-sevens system, specifically in the 2.3.5.11 subgroup, where an extension that equates 128/125 with [[45/44]] and therefore 625/512 with [[11/9]] (by tempering out [[243/242]] and [[5632/5625]]), finding the 11th harmonic at 20 generators up, is highly natural in addition to the aforementioned extension to prime 23. | Therefore, it may be advisable to consider würschmidt a no-sevens system, specifically in the 2.3.5.11 subgroup, where an extension that equates 128/125 with [[45/44]] and therefore 625/512 with [[11/9]] (by tempering out [[243/242]] and [[5632/5625]]), finding the 11th harmonic at 20 generators up, is highly natural in addition to the aforementioned extension to prime 23. | ||
== Interval | == Interval chain == | ||
In the below, octave-reduced harmonics | In the below, octave-reduced harmonics 1–23 are indicated in '''bold'''. | ||
{| class="wikitable center-1 right-2" | {| class="wikitable center-1 right-2" | ||
|- | |- | ||
! rowspan="2" | | ! rowspan="2" | # !! rowspan="2" | Cents* !! colspan="2" | Approximate Ratios | ||
|- | |- | ||
! 2.3.5.23 | ! 2.3.5.23 Subgroup !! Add-11 Extension | ||
|- | |- | ||
| 0 || 0.0 || '''1/1''' || | | 0 || 0.0 || '''1/1''' || | ||
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| 1 || 387.80 || '''5/4''', 144/115 || 69/55 | | 1 || 387.80 || '''5/4''', 144/115 || 69/55 | ||
|- | |- | ||
| 2 || 775.60 || | | 2 || 775.60 || 25/16, 36/23 || 69/44, 352/225 | ||
|- | |- | ||
| 3 || 1163.40 || 45/23, | | 3 || 1163.40 || 45/23, 125/64, 736/375 || 88/45, 108/55 | ||
|- | |- | ||
| 4 || 351.21 || 92/75, 225/184, 625/512 || 11/9, 27/22 | | 4 || 351.21 || 92/75, 225/184, 625/512 || 11/9, 27/22 | ||
| Line 57: | Line 39: | ||
| 9 || 1090.21 || '''15/8''', 216/115 || 207/110, 253/135 | | 9 || 1090.21 || '''15/8''', 216/115 || 207/110, 253/135 | ||
|- | |- | ||
| 10 || 278.01 || 27/23, | | 10 || 278.01 || 27/23, 75/64 || 88/75, 207/176 | ||
|- | |- | ||
| 11 || 665.82 || 184/125, 135/92, 375/256 || 22/15, 81/55 | | 11 || 665.82 || 184/125, 135/92, 375/256 || 22/15, 81/55 | ||
| Line 67: | Line 49: | ||
| 14 || 629.22 || '''23/16''', 36/25 || 33/23, 275/192 | | 14 || 629.22 || '''23/16''', 36/25 || 33/23, 275/192 | ||
|- | |- | ||
| 15 || 1017.02 || 9/5, | | 15 || 1017.02 || 9/5, 115/64 || 165/92, 242/135 | ||
|- | |- | ||
| 16 || 204.82 || '''9/8''' || 121/108 | | 16 || 204.82 || '''9/8''' || 121/108 | ||
|- | |- | ||
| 17 || 592.62 || | | 17 || 592.62 || 45/32, 162/115 || 253/180 | ||
|- | |- | ||
| 18 || 980.43 || 81/46, 225/128 || 44/25 | | 18 || 980.43 || 81/46, 225/128 || 44/25 | ||
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|- | |- | ||
| 20 || 556.03 || 69/50, 864/625 || '''11/8''', 243/176 | | 20 || 556.03 || 69/50, 864/625 || '''11/8''', 243/176 | ||
|} | |} | ||
</ | <nowiki>*</nowiki> In 2.3.5-targeted [[DKW theory|DKW]] tuning | ||
== Tunings == | == Tunings == | ||