No-threes subgroup temperaments: Difference between revisions

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+overview, like a to extensions of "2.5 subgroup no-comma family"
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This is a collection of [[subgroup temperament]]s which omit the prime harmonic of 3.  
This is a collection of [[subgroup temperament]]s which omit the prime harmonic of 3.  
== Overview by mapping of 5 ==
Classified by focusing on the mapping of 5th harmonic, similar to [[Rank-2 temperaments by mapping of 3]].
* French decimal and Trader are with ~2/1 period and ~5/4 generator. There is one-to-one correspondence between 2.5 subgroup and mapped intervals.
* Didacus is with a ~28/25 generator, two of which give the ~5/4.
* Ostara, Movila and Vengeance are with variety expressed generator, three of which give the ~5/2.
* Insect is with a ~55/32 generator, three of which give the ~5/1.
* Frostburn is with a ~28/25 generator, four of which give the ~8/5.
Others are more far.
Temperaments discussed elsewhere include
* Jubilic → [[Jubilismic clan]]
* Berylic → [[4th-octave temperaments]]
* etc.


== Llywelyn aka shoe ==
== Llywelyn aka shoe ==
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{{Optimal ET sequence|legend=1|7, 18dg, 25, 32, 57, 488, 545, 602, 659, 716, 773, 830, 887, 1717g}}
{{Optimal ET sequence|legend=1|7, 18dg, 25, 32, 57, 488, 545, 602, 659, 716, 773, 830, 887, 1717g}}


== Yer (rank 3) ==
=== Yer (rank 3) ===
[[Subgroup]]: 2.11.13.17.19
[[Subgroup]]: 2.11.13.17.19


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{{Optimal ET sequence|legend=1| 11, 13, 24, 33, 37, 46, 57, 70, 127, 197eh }}
{{Optimal ET sequence|legend=1| 11, 13, 24, 33, 37, 46, 57, 70, 127, 197eh }}


== Yamablu ==
=== Yamablu ===
Yamablu, with a generator of ~17/13, is named for its tempering of the yama comma (209/208) and the blume comma (2057/2048), which also implies the blumeyer comma (2432/2431). The [[Kite's Method of Naming Rank-2 Scales using Mode Numbers|13th Yamablu[13]]] scale is a linear-temperament version of [[Gjaeck]].
Yamablu, with a generator of ~17/13, is named for its tempering of the yama comma (209/208) and the blume comma (2057/2048), which also implies the blumeyer comma (2432/2431). The [[Kite's Method of Naming Rank-2 Scales using Mode Numbers|13th Yamablu[13]]] scale is a linear-temperament version of [[Gjaeck]].


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[[Tp tuning #T2 tuning|RMS error]]: 0.4898 cents
[[Tp tuning #T2 tuning|RMS error]]: 0.4898 cents


== Mavericks ==
=== Mavericks ===


[[Subgroup]]: 2.13.19
[[Subgroup]]: 2.13.19