Deneb: Difference between revisions

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'''Deneb''' is a [[tritave]]-repeating [[rank-2 temperament]] that tempers out the comma 6655/6561 in the 3.5.11 subgroup, the amount by which 4 [[11/9]]'s exceed [[11/5]]. Having a generator of ~[[11/9]], it possesses [[MOS scale]]s of the families {{nowrap|1L 4s<3/1>|5L 1s<3/1>|6L 5s<3/1>|and 11L 6s<3/1>}}. Good tunings for this temperament are [[11edt]], [[17edt]], [[28edt]], [[39edt]] and [[45edt]].
{{todo|rewrite, polish interval chain table|inline=1}}
'''Deneb''' is a [[nonoctave]], [[tritave]]-repeating [[rank-2 temperament]] that tempers out the comma [[6655/6561]] in the 3.5.11 subgroup. It  is generated by a neutral third that represents a flat [[11/9]], and three generators stacked represent [[9/5]] (and due to tritave-equivalence, -3 generators stacked represents [[5/3]]). It possesses [[MOS scale]]s of the families {{mos scalesig|1L 4s<3/1>|link=1}}, {{mos scalesig|5L 1s<3/1>|link=1}}, {{mos scalesig|6L 5s<3/1>|link=1}}, and {{mos scalesig|11L 6s<3/1>|link=1}}.  
 
== Etymology ==
It was first discovered by [[User:CompactStar|CompactStar]] in 2023. The name is most likely just because of the existing theme of several tritave-equivalent temperaments being named after stars.


== Interval chain (POTE tuning) ==  
== Interval chain (POTE tuning) ==  
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== Harmony ==
Deneb does not have sevens and as such the most simple approach to no-twos harmony (using the chord 3:5:7) does not work. Due to its approximation of 11/9 and 11/5, the otonal chord 5:9:11 and its utonal inversion 45:55:99 is well-represented. The utonal chord in particular sounds surprisingly consonant for a no-twos chord, while the otonal chord sounds more strained but still somewhat consonant.


== Temperament data ==
== Temperament data ==
For formal temperament data, see [[No-twos subgroup temperaments#Deneb]].
For formal temperament data, see [[No-twos subgroup temperaments#Deneb]].


[[Category:Temperaments]]
[[Category:Deneb| ]] <!-- main article -->
[[Category:Nonoctave]]
[[Category:Rank-2 temperaments]]
[[Category:Rank 2]]
[[Category:Non-octave temperaments]]
[[Category:Tritave-equivalent temperaments]]

Latest revision as of 05:21, 4 October 2026

Todo: rewrite, polish interval chain table

Deneb is a nonoctave, tritave-repeating rank-2 temperament that tempers out the comma 6655/6561 in the 3.5.11 subgroup. It is generated by a neutral third that represents a flat 11/9, and three generators stacked represent 9/5 (and due to tritave-equivalence, -3 generators stacked represents 5/3). It possesses MOS scales of the families 1L 4s⟨3/1⟩, 5L 1s⟨3/1⟩, 6L 5s⟨3/1⟩, and 11L 6s⟨3/1⟩.

Etymology

It was first discovered by CompactStar in 2023. The name is most likely just because of the existing theme of several tritave-equivalent temperaments being named after stars.

Interval chain (POTE tuning)

Generators up Cents Generators down Cents
0 0.00 0 0.00
1 340.24 1 1561.72
2 680.48 2 1221.48
3 1020.72 3 881.24
4 1360.96 4 541.00
5 1701.20 5 200.76
6 139.48 6 1762.48
7 479.72 7 1422.24
8 819.96 8 1082.00
9 1160.20 9 741.76

Temperament data

For formal temperament data, see No-twos subgroup temperaments#Deneb.