Garibaldi: Difference between revisions
→As a detemperament of 12et: Expansion |
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[[File:Garibaldi-cassandra 12et Detempering.png|thumb|Garibaldi/cassandra as a 53-tone 12et detempering]] | [[File:Garibaldi-cassandra 12et Detempering.png|thumb|Garibaldi/cassandra as a 53-tone 12et detempering]] | ||
Garibaldi is very naturally considered as a [[detemperament]] of the [[12edo|12 equal temperament]] (12et), where the chromatic scale becomes a near-equal [[5L 7s]]. The diagram on the right shows a 53-tone detempered scale, with a generator range of -26 to +26. 53 is the largest number of tones for a | Garibaldi is very naturally considered as a [[detemperament]] of the [[12edo|12 equal temperament]] (12et), where the chromatic scale becomes a near-equal [[5L 7s]]. The diagram on the right shows a 53-tone detempered scale, with a generator range of -26 to +26. 53 is the largest number of tones for a mos where the 12 categories never overlap. | ||
Each pitch category of 12et is further divided into four or five qualities, separated by a [[pythagorean comma]], which represents the syntonic~septimal comma. Combining this division with the minor and major diatonic qualities of 12et, garibaldi can give up to ''eight'' qualities for each diatonic category. Taking thirds as an example: | Each pitch category of 12et is further divided into four or five qualities, separated by a [[pythagorean comma]], which represents the syntonic~septimal comma. Combining this division with the minor and major diatonic qualities of 12et, garibaldi can give up to ''eight'' qualities for each diatonic category. Taking thirds as an example: | ||
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Notice also the little interval between artoneutral and tendoneutral, ~[[243/242]]. This interval spans 41 generator steps. 41edo tempers it out so that it merges artoneutral and tendoneutral into a [[Sqrt(3/2)|hemififth]] whereas 53edo exaggerates it to the size of the generic comma. 94edo tunes it to one half the size of the general comma, which can be seen as a good compromise. | Notice also the little interval between artoneutral and tendoneutral, ~[[243/242]]. This interval spans 41 generator steps. 41edo tempers it out so that it merges artoneutral and tendoneutral into a [[Sqrt(3/2)|hemififth]] whereas 53edo exaggerates it to the size of the generic comma. 94edo tunes it to one half the size of the general comma, which can be seen as a good compromise. | ||
On another note, excluding 41edo, the two neutral intervals also have natural 13-limit interpretations in cassandra: 11/9~[[39/32]] and 27/22~[[16/13]], tempering out [[352/351]]. | On another note, excluding 41edo, the two neutral intervals also have natural 13-limit interpretations in cassandra: 11/9~[[39/32]] and 27/22~[[16/13]], tempering out [[352/351]]. This also means the minor third is ~[[13/11]]. | ||
== Notation == | == Notation == | ||
Like in [[schismic]], it is recommended to adopt an additional module of accidentals such as arrows to represent the comma step. Garibaldi further benefits from this as the arrow also stands in for the septimal comma, so that the same inflection can be used to reach classical and septimal intervals alike. | Like in [[schismic]], it is recommended to adopt an additional module of accidentals such as arrows to represent the comma step. Garibaldi further benefits from this as the arrow also stands in for the septimal comma, so that the same inflection can be used to reach classical and septimal intervals alike. | ||
The following | The following table shows how to notate 2.3.5.7.11.13.19 intervals in each extension of garibaldi. | ||
{| class="wikitable | {| class="wikitable" style="text-align:center; vertical-align:middle;" | ||
|+ style="font- | |+Nomenclature of selected intervals | ||
| | |- style="font-weight:bold;" | ||
! rowspan="2" | Ratio | |||
! colspan="3" | Example | |||
|- style="font-weight:bold;" | |||
| Cassandra | |||
| Andromeda | |||
| Helenus | |||
|- | |- | ||
| 3/2 | | 3/2 | ||
| | | colspan="3" | C–G (perfect fifth) | ||
| C–G | |||
|- | |- | ||
| 5/4 | | 5/4 | ||
| | | colspan="3" | C–↓E (downmajor third) | ||
|- | |- | ||
| 7/4 | | 7/4 | ||
| | | colspan="3" | C–↓Bb (downminor seventh) | ||
|- | |- | ||
| 11/8 | | 11/8 | ||
| | | C–↑↑F (dupfourth) | ||
| | | C–↓↓F#* (dudtritone) | ||
| C–↓3F#* (trudtritone) | |||
|- | |- | ||
| 13/8 | | 13/8 | ||
| | | C–↑↑Ab (dupminor sixth) | ||
| | | C–↓↓A (dudmajor sixth) | ||
| C–↓3A (trudmajor sixth) | |||
|- | |- | ||
| 19/16 | | 19/16 | ||
| | | colspan="3" | C–Eb (minor third) | ||
| | |||
|} | |} | ||
<nowiki/>*Can also be spelt ↓Gb and ↓↓Gb respectively, since F# = ↑Gb. | |||
== Chords and harmony == | == Chords and harmony == | ||
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If a warm, sweet, laid-back sound is desired, the thirds can be inflected inwards by a comma to yield | If a warm, sweet, laid-back sound is desired, the thirds can be inflected inwards by a comma to yield | ||
* 1–5/4–3/2 ( | * 1–5/4–3/2 (C–↓E–G) | ||
* 1–6/5–3/2 ( | * 1–6/5–3/2 (C–↑Eb–G) | ||
Contrarily, for a more sour and active sound, they can be inflected outwards by a comma to yield | Contrarily, for a more sour and active sound, they can be inflected outwards by a comma to yield | ||
* 1–9/7–3/2 ( | * 1–9/7–3/2 (C–↑E-G) | ||
* 1–7/6–3/2 ( | * 1–7/6–3/2 (C–↓Eb-G) | ||
== Scales == | == Scales == | ||
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[[Category:Marvel temperaments]] | [[Category:Marvel temperaments]] | ||
[[Category:Gariboh clan]] | [[Category:Gariboh clan]] | ||
[[Category: | [[Category:Aberschismic temperaments]] | ||