Quartismic family

Revision as of 12:26, 7 June 2021 by FloraC (talk | contribs) (Remove non-existent extensions; various corrections (e.g. meanquarter can't be extended (recte tempered) to godzilla, also those are individual temperaments not clans))
Todo: discuss title

This doesn't follow the definition of temperament family

The quartismic family is built up from temperaments of various ranks that temper out the quartisma- the unnoticeable comma with the ratio 117440512/117406179, and a monzo of [24 -6 0 1 -5. Among the members of this family are quartismatic, altierran, meanquarter, coin, escapismic, dietismic, kleirtismic, and doublefour.

Quartismic

The 11-limit parent comma for the quartismic family is the the quartisma with a ratio of 117440512/117406179 and a monzo of [24 -6 0 1 -5. As the quartisma is an unnoticeable comma, this rank-4 temperament is a microtemperament.

Subgroup: 2.3.5.7.11

Comma list: 117440512/117406179

Mapping: [1 0 0 1 5], 0 1 0 1 -1], 0 0 1 0 0], 0 0 0 5 1]]

Wedgie⟨⟨⟨⟨ 5 1 0 -6 -24 ]]]]

POTE generators: ~3/2 = 701.9826, ~5/4 = 386.3427, ~33/32 = 53.3748

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Badness: 0.274 × 10-6

Quartismatic

There are some temperaments in the quartismic family in which the quartisma is tempered out, but without any sort of five-limit representation. This particular temperament is the parent temperament of all such no-fives children, and is referred to as Saquinlu-azo temperament in color notation.

Subgroup: 2.3.7.11

Comma list: 117440512/117406179

Sval mapping: [1 0 1 5], 0 1 1 -1], 0 0 5 1]]

POTE generators: ~3/2 = 701.9826, ~33/32 = 53.3748

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The following unnamed rank-2 quartismic temperament MOS scales have been found

Altierran

In altierran, both the schisma and the quartisma are tempered out.

Subgroup: 2.3.5.7.11

Comma list: 32805/32768, 161280/161051

Mapping: [1 0 15 1 5], 0 1 -8 1 -1], 0 0 0 5 1]]

Wedgie⟨⟨⟨ -102 24 -15 75 6 -8 40 1 -5 0 ]]]

POTE generators: ~3/2 = 701.7299, ~33/32 = 53.3889

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13-limit

  Todo: rename

Not an immediate extension, must be renamed

Subgroup: 2.3.5.7.11.13

Comma list: 10985/10976, 32805/32768, 161280/161051

Mapping: [1 2 -1 3 3 5], 0 -3 24 -3 3 -11], 0 0 0 5 1 5]]

POTE generators: ~11/10 = 166.0628, ~33/32 = 53.4151

Meanquarter

In meanquarter, both the meantone comma and the quartisma are tempered out.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 4128768/4026275

Mapping: [1 0 -4 1 5], 0 1 4 1 -1], 0 0 5 1]]

POTE generators: ~3/2 = 697.3325, ~33/32 = 54.1064

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Coin

In coin, both the magic comma and the quartisma are tempered out.

Subgroup: 2.3.5.7.11

Comma list: 3125/3072, 117440512/117406179

Mapping: [1 0 2 1 5], 0 5 1 0 -6], 0 0 0 5 1]]

POTE generators: ~5/4 = 380.3623, ~9/7 = 433.3120

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Escapismic

In escapisimic, both the escapade comma and the quartisma are tempered out, thus, it is essentially an Escapade expansion.

Subgroup: 2.3.5.7.11

Comma list: 117440512/117406179, 4294967296/4271484375

Mapping: [1 2 2 3 3], 0 -9 7 -4 10], 0 0 0 5 1]]

POTE generators: ~33/32 = 55.3538

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Dietismic

In dietismic, both the diaschisma and the quartisma are tempered out. Dietismic can easily be further tempered to shrutar, and in fact, it is rather unusual to find a different tempering option.

Subgroup: 2.3.5.7.11

Comma list: 2048/2025, 117440512/117406179

POTE generators: ~3/2 = 704.5238, ~33/32 = 53.4408

Mapping: [2 3 5 5 7], 0 2 -4 7 -1]]

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Scales:

Rank 2 scale (52.6800, 2/1), 13|9

Rank 2 scale (53.3742, 2/1), 13|9

Kleirtismic

In kleirtismic, both the kleisma and the quartisma are tempered out. The "kleir-" in "kleirtismic" is pronounced the same as "Clair".

Subgroup: 2.3.5.7.11

Comma list: 15625/15552, 117440512/117406179

Mapping: [1 0 1 1 5], 0 6 5 1 -7], 0 0 0 5 1]]

POTE generators: ~6/5 = 317.0291, ~68/55 = 370.2940

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Doublefour

In doublefour, both the tetracot comma and the quartisma are tempered out.

Subgroup: 2.3.5.7.11

Comma list: 20000/19683, 100656875/99090432

Mapping: [1 1 1 2 4], 0 4 9 4 -4], 0 0 0 5 1]]

POTE generators: ~425/384 = 175.9566, ~33/32 = 52.9708

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