Diminished (temperament): Difference between revisions
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'''Diminished''' is a [[rank-2 temperament|rank-2]] [[regular temperament|temperament]] that [[tempering out|tempers out]] the diminished comma, [[648/625]], in the 5-limit, and [[36/35]] and [[50/49]] in the [[7-limit]]. It has a 1/4-[[octave]] [[period]] and is [[generator|generated]] by a [[~]][[3/2]] perfect fifth. The main interest in this temperament is in its [[mos scale]]s, featuring [[tetrawood]] (4L 4s) when properly tuned. | '''Diminished''' is a [[rank-2 temperament|rank-2]] [[regular temperament|temperament]] that [[tempering out|tempers out]] the diminished comma, [[648/625]], in the [[5-limit]], and [[36/35]] and [[50/49]] in the [[7-limit]]. It has a 1/4-[[octave]] [[period]] and is [[generator|generated]] by a [[~]][[3/2]] perfect fifth. The main interest in this temperament is in its [[mos scale]]s, featuring [[tetrawood]] (4L 4s) when properly tuned. | ||
It can be extended to the 2.3.5.7.19-[[subgroup]] where the 1/4-octave period stands in for both ~6/5 and ~19/16 since this ~19/16 is more accurate, though its mos structure of 4L 4s is very flexible, so one could use 3\4 minus ~8/7 as a ~670{{cent}} fifth for a 2.7.19 subgroup version of diminished, for example. | It can be extended to the 2.3.5.7.19-[[subgroup]] where the 1/4-octave period stands in for both ~6/5 and ~19/16 since this ~19/16 is more accurate, though its mos structure of 4L 4s is very flexible, so one could use 3\4 minus ~8/7 as a ~670{{cent}} fifth for a 2.7.19 subgroup version of diminished, for example. | ||
[[12edo]] is an obvious tuning. | [[12edo]] is an obvious tuning. Another possible tuning is [[16edo]] which has the interesting feature of being relatively good in the 2.7.19 subgroup so that the fifth is approximately [[28/19]], or [[28edo]], which uses something like {{nowrap| ~[[95/64]] {{=}} ~([[19/16]])⋅([[5/4]]) }} as its fifth, of which the latter is notable as a tuning for the 5-limit temperament, dimipent, as it has very accurate [[5/4]]'s, being a [[strongly consistent circle]] of them. | ||
See [[ | See [[Diminished family #Diminished]] for technical data. | ||
== Interval chain == | == Interval chain == | ||
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| 15/8 | | 15/8 | ||
|} | |} | ||
<nowiki/>* In 7-limit CWE tuning | <nowiki/>* In 7-limit CWE tuning, octave reduced | ||
== Scales == | == Scales == | ||
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== Tunings == | == Tunings == | ||
=== Prime-optimized tunings === | === Prime-optimized tunings === | ||
{| class="wikitable mw-collapsible mw-collapsed" | |||
|+ style="font-size: 105%; white-space: nowrap;" | 5-limit prime-optimized tunings | |||
|- | |||
! rowspan="2" | | |||
! colspan="3" | Euclidean | |||
|- | |||
! Constrained | |||
! Constrained & skewed | |||
! Destretched | |||
|- | |||
! Tenney | |||
| CTE: ~3/2 = 696.9833{{c}} | |||
| CWE: ~3/2 = 698.2661{{c}} | |||
| POTE: ~3/2 = 699.5072{{c}} | |||
|} | |||
{| class="wikitable mw-collapsible mw-collapsed" | |||
|+ style="font-size: 105%; white-space: nowrap;" | 7-limit prime-optimized tunings | |||
|- | |||
! rowspan="2" | | |||
! colspan="3" | Euclidean | |||
|- | |||
! Constrained | |||
! Constrained & skewed | |||
! Destretched | |||
|- | |||
! Tenney | |||
| CTE: ~3/2 = 691.9545{{c}} | |||
| CWE: ~3/2 = 695.9618{{c}} | |||
| POTE: ~3/2 = 699.5235{{c}} | |||
|} | |||
=== Others === | === Others === | ||
* 5-limit [[DKW theory|DKW]]: ~6/5 = | * 5-limit [[DKW theory|DKW]]: ~6/5 = 300.000{{c}}, ~3/2 = 690.289{{c}} | ||
=== Tuning spectrum === | === Tuning spectrum === | ||
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|- | |- | ||
! Edo<br>generator | ! Edo<br>generator | ||
! [[Eigenmonzo| | ! [[Eigenmonzo|Unchanged interval<br>(eigenmonzo)]]* | ||
! Generator (¢) | ! Generator (¢) | ||
! Comments | ! Comments | ||
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* [[Diminished]] (disambiguation page) | * [[Diminished]] (disambiguation page) | ||
[[Category:Diminished| ]] <!-- Main article --> | [[Category:Diminished| ]] <!-- Main article --> | ||
[[Category: | [[Category:Rank-2 temperaments]] | ||
[[Category:Diminished family]] | |||
[[Category:Jubilismic clan]] | [[Category:Jubilismic clan]] | ||
[[Category:Mint temperaments]] | [[Category:Mint temperaments]] | ||
[[Category:Starling temperaments]] | [[Category:Starling temperaments]] |