Kite Guitar Scales: Difference between revisions
→Harmonic and subharmonic scales: dropped long names for harmajor, etc. |
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[[MOS scale|MOS (moment of symmetry) scales]] have only two step sizes, with the less frequent steps evenly distributed throughout the scale. MOS scales are an important part of microtonal scale theory. But almost every 41-edo MOS scale with a perfect 5th is awkward. The only exception is scales from the [[Magic|Laquinyo]] temperament, which have a small step of only one fret. They have either a very lopsided L/s ratio or more than 12 notes. They are discussed further in the Nineteen-tone section. | [[MOS scale|MOS (moment of symmetry) scales]] have only two step sizes, with the less frequent steps evenly distributed throughout the scale. MOS scales are an important part of microtonal scale theory. But almost every 41-edo MOS scale with a perfect 5th is awkward. The only exception is scales from the [[Magic|Laquinyo]] temperament, which have a small step of only one fret. They have either a very lopsided L/s ratio or more than 12 notes. They are discussed further in the Nineteen-tone section. | ||
Every scale can be thought of as a chord, e.g. the 12edo major pentatonic scale is a 6add9 pentad. Many pentads and heptads have an [[Essential tempering commas|innate comma]] which 41edo does not temper out. Thus many Kite Guitar scales have '''dual''' notes, meaning a note may vary by 1 edostep, in order to avoid a wolf 5th. In the tables below, a note that may be either a M2 or a vM2 is indicated by (v)M2. | Every scale can be thought of as a chord, e.g. the 12edo major pentatonic scale is a 6add9 pentad. Many pentads and heptads have an [[Essential tempering commas|innate comma]] which 41edo does not temper out. Thus many Kite Guitar scales have '''dual''' notes, meaning a note may vary by 1 edostep, in order to avoid a wolf 5th. A scale with a dual note or two is called a '''fluid''' scale. In the tables below, a note that may be either a M2 or a vM2 is indicated by (v)M2. | ||
In general, majorish scales have a dual 2nd and minorish scales have a dual 4th. But other notes can be dual as well. For example, Iv - IVv - Vv7 - Iv requires a downmajor scale with a dual 4th. And if the V chord is Vv9, the 6th must also be dual. | |||
What is the default form of a fluid scale? In other words, if asked to play a downmajor scale, what notes would you play? Dual notes written as (v)M2 or (v)4 default to plain. But (◇)vM6 written with a plain sign defaults to downed. | |||
Step sizes can also be dual, leading to near-MOS scales (see below). | |||
== The Format == | == The Format == | ||
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=== Harmonic and subharmonic scales === | === Harmonic and subharmonic scales === | ||
Note that the | These scales are named after the triad implied by the 3rd and 5th, minus the up or down. Note that the har''major'' scale contains a down''minor'' 7th, and the har''minor'' scale contains a down''major'' 6th. Likewise with the subharmajor and subharminor scales. A hardim pentatonic scale would be P1 ^m3 d5 ^m6 ^m7 P8 = 5:6:7:8:9. But it's not very plausible, and would be heard as one of the other modes. | ||
{| class="wikitable left-9 center-all" | {| class="wikitable left-9 center-all" | ||
|+ | |+ | ||
!subgroup | !subgroup | ||
!name | !name | ||
! colspan="6" |scale | ! colspan="6" |scale | ||
!as a chord | !as a chord | ||
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! rowspan="2" |yaza | ! rowspan="2" |yaza | ||
(2.3.5.7) | (2.3.5.7) | ||
!harmajor | !harmajor | ||
|P1 | |P1 | ||
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| rowspan="2" |1XL 1L 1m 1s 1xs | | rowspan="2" |1XL 1L 1m 1s 1xs | ||
|- | |- | ||
!harminor | !harminor | ||
|P1 | |P1 | ||
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|- | |- | ||
! rowspan="3" |" | ! rowspan="3" |" | ||
!subharmajor | !subharmajor | ||
|P1 | |P1 | ||
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| rowspan="3" |" | | rowspan="3" |" | ||
|- | |- | ||
!subharminor | !subharminor | ||
|P1 | |P1 | ||
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|11 6 7 - 8 9 | |11 6 7 - 8 9 | ||
|- | |- | ||
!subhardim | !subhardim | ||
|P1 | |P1 | ||
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|+ | |+ | ||
!name | !name | ||
! colspan="9" |scale | ! colspan="9" |scale | ||
!as a chord | !as a chord | ||
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!step sizes | !step sizes | ||
|- | |- | ||
!harmajor | !harmajor | ||
|P1 | |P1 | ||
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L/s = 2 or 1.75 | L/s = 2 or 1.75 | ||
|- | |- | ||
!harminor | !harminor | ||
|P1 | |P1 | ||
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|54'''44'''7-665 | |54'''44'''7-665 | ||
|- | |- | ||
!subharmajor | !subharmajor | ||
|P1 | |P1 | ||
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| rowspan="2" |" | | rowspan="2" |" | ||
|- | |- | ||
!subharminor | !subharminor | ||
|P1 | |P1 | ||