Electra: Difference between revisions
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'''Electra''' is a [[tritave]]-based 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 temperaments. It tempers out the commas 1875/1859 and 14641/14625, with the latter being 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>]] and 7L | '''Electra''' is a [[tritave]]-based 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 temperaments. It tempers out the commas 1875/1859 and 14641/14625, with the latter being 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>. | ||
== | == Intervals == | ||
=== In 7-note MOS === | |||
Here, "major" qualirty is used for intervals in the mode 5|1 and "minor" quality is used for intervals in the mode 1|5. | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! Interval name | ||
! Cents | ! Cents ([[18edt]]) | ||
|- | |- | ||
| | | Perfect unison | ||
| 0. | | 0.000 | ||
|- | |- | ||
| | | Diminished mosstep | ||
| | | 211.328 | ||
|- | |- | ||
| | | Minor mosstep | ||
| | | 316.993 | ||
|- | |- | ||
| | | Augmented mosstep | ||
| | | 422.657 | ||
|- | |- | ||
| | | Diminshed 2-mosstep | ||
| | | 422.657 | ||
|- | |- | ||
| | | Perfect 2-mosstep | ||
| | | 528.321 | ||
|- | |- | ||
| | | Augmented 2-mosstep | ||
| 633.985 | |||
|- | |||
| | | | ||
|- | |||
| | |||
|} | |} | ||
== Chords == | == Chords == | ||
Revision as of 05:17, 1 March 2023
Electra is a tritave-based 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 temperaments. It tempers out the commas 1875/1859 and 14641/14625, with the latter being the amount by which 3 11/5's exceed 117/11. It possesses MOS scales of the families 4L 3s<3/1>, 7L 4s<3/1>, and 7L 11s<3/1>.
Intervals
In 7-note MOS
Here, "major" qualirty is used for intervals in the mode 5|1 and "minor" quality is used for intervals in the mode 1|5.
| Interval name | Cents (18edt) |
|---|---|
| Perfect unison | 0.000 |
| Diminished mosstep | 211.328 |
| Minor mosstep | 316.993 |
| Augmented mosstep | 422.657 |
| Diminshed 2-mosstep | 422.657 |
| Perfect 2-mosstep | 528.321 |
| Augmented 2-mosstep | 633.985 |
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 als a "minor" version of this triad, 143:165:195.