Electra: Difference between revisions

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'''Electra''' is a [[tritave]]-repeating rank-2 temperament in the 3.5.11.13 subgroup, with a generator near [[15/11]] or it's tritave complement 11/5. The name was given by [[User:CompactStar|CompactStar]] in analogy to the [[Sirius]], [[Arcturus]], and [[Canopus]] star names used for other tritave-repeating temperaments. It tempers out the comma  14641/14625, the amount by which 3 11/5's exceed 117/11. It possesses MOS scales of the families [[4L 3s (tritave-equivalent)|4L 3s<3/1>]], 7L 4s<3/1>, and 7L 11s<3/1>.
'''Electra''' is a [[tritave]]-repeating rank-2 temperament in the 3.5.11.13 subgroup, with a generator near [[15/11]] or it's tritave complement 11/5. The name was given by [[User:CompactStar|CompactStar]] in analogy to the [[Sirius]], [[Arcturus]], and [[Canopus]] star names used for other tritave-repeating temperaments. It tempers out the commas 14641/14625 (the amount by which 3 11/5's exceed 117/11) and 1875/1859. It possesses MOS scales of the families [[4L 3s (tritave-equivalent)|4L 3s<3/1>]], 7L 4s<3/1>, and 7L 11s<3/1>.


== Interval chain (just 15/11 tuning) ==
== Interval chain (CTE tuning) ==
{| class="wikitable"
{| class="wikitable"
! Generators
! Generators
Line 8: Line 8:
|-
|-
|1
|1
|536.951
|535.932
|-
|-
|2
|2
|1073.902
|1071.864
|-
|-
|3
|3
|1610.853
|1607.796
|-
|-
|4
|4
|245.849
|241.773
|-
|-
|5
|5
|782.8
|777.705
|-
|-
|6
|6
|1319.751
|1313.637
|-
|-
|7
|7
|1856.702
|1849.569
|-
|-
|8
|8
|491.698
|483.546
|-
|-
|9
|9
|1028.649
|1019.478
|-
|-
|10
|10
|1565.6
|1555.41
|-
|-
|11
|11
|200.596
|189.387
|-
|-
|12
|12
|737.547
|725.319
|-
|-
|13
|13
|1274.498
|1261.251
|-
|-
|14
|14
|1811.449
|1797.183
|-
|-
|15
|15
|446.445
|431.16
|-
|-
|16
|16
|983.396
|967.092
|}
|}
== Chords ==
== Chords ==

Revision as of 23:16, 1 March 2023

Electra is a tritave-repeating rank-2 temperament in the 3.5.11.13 subgroup, with a generator near 15/11 or it's tritave complement 11/5. The name was given by CompactStar in analogy to the Sirius, Arcturus, and Canopus star names used for other tritave-repeating temperaments. It tempers out the commas 14641/14625 (the amount by which 3 11/5's exceed 117/11) and 1875/1859. It possesses MOS scales of the families 4L 3s<3/1>, 7L 4s<3/1>, and 7L 11s<3/1>.

Interval chain (CTE tuning)

Generators Cents
1 535.932
2 1071.864
3 1607.796
4 241.773
5 777.705
6 1313.637
7 1849.569
8 483.546
9 1019.478
10 1555.41
11 189.387
12 725.319
13 1261.251
14 1797.183
15 431.16
16 967.092

Chords

The 11:13:15 triad is a characteristic feature of many Electra scales, and has been suggeested by CompactStar as a fundamental sonority for no-2's music, due to being relatively consonant compared to other no-2's chords. There is also a "minor" version of this triad, 143:165:195.

EDTs supporting Electra temperament

Scales