Landscape microtemperaments

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Revision as of 21:48, 16 December 2022 by Gud2228 (talk | contribs) (13-limit)
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Landscape microtemperaments are rank-2 temperaments tempering out the landscape comma ([-4 6 -6 3 = 250047/250000).

Landscape rank-2 temperaments include sextile, septichrome, pnict, and domain. Considered elsewhere are:

Sextile

Subgroup: 2.3.5.7

Comma list: 250047/250000, 33554432/33480783

Mapping: [6 0 71 150], 0 1 -6 -14]]

Wedgie⟨⟨ 6 -36 -84 -71 -150 -94 ]]

POTE generator: ~3/2 = 702.212

Template:Val list

Badness: 0.070097

11-limit

Subgroup: 2.3.5.7.11

Comma list: 5632/5625, 9801/9800, 151263/151250

Mapping: [6 0 71 150 230], 0 1 -6 -14 -22]]

POTE generator: ~3/2 = 702.202

Optimal GPV sequence: Template:Val list

Badness: 0.029677

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 5632/5625, 9801/9800, 151263/151250

Mapping: [6 0 71 150 230 ?], 0 1 -6 -14 -22 -27]]

POTE generator: ~3/2 = 702.202

Optimal GPV sequence: Template:Val list

Badness: 0.029677

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 936/935, 1716/1715, 5632/5625, 9801/9800, 151263/151250

Mapping: [6 0 71 150 230 ? ?], 0 1 -6 -14 -22 -27 3]]

POTE generator: ~3/2 = 702.202

Optimal GPV sequence: Template:Val list

Badness: 0.029677

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 936/935, 1216/1215, 1716/1715, 5632/5625, 9801/9800, 151263/151250

Mapping: [6 0 71 150 230 ? M], 0 1 -6 -14 -22 -27 3 -1]]

POTE generator: ~3/2 = 702.202

Optimal GPV sequence: Template:Val list

Badness: 0.029677

Sextilia

1001/1000

17-limit

715/714

19-limit

1216/1215

Septichrome

Subgroup: 2.3.5.7

Comma list: 250047/250000, 2460375/2458624

Mapping: [3 3 1 0], 0 5 17 24]]

Wedgie⟨⟨ 15 51 72 46 72 24 ]]

POTE generator: ~243/224 = 140.367

Template:Val list

Badness: 0.016814

Pnict

Subgroup: 2.3.5.7

Comma list: 250047/250000, 2100875/2097152

Mapping: [3 10 11 6], 0 -13 -10 6]]

Wedgie⟨⟨ 39 30 -18 -43 -138 -126 ]]

POTE generator: ~192/175 = 161.399

Template:Val list

Badness: 0.045660

Domain

Subgroup: 2.3.5.7

Comma list: 250047/250000, 645700815/645657712

Mapping: [3 -3 -9 -8], 0 17 35 36]]

Wedgie⟨⟨ 51 105 108 48 28 -44 ]]

POTE generator: ~10/9 = 182.467

Template:Val list

Badness: 0.013979

Avicenna

Subgroup: 2.3.5.7

Comma list: 250047/250000, 29360128/29296875

Mapping: [3 2 8 16], 0 8 -3 -22]]

Wedgie⟨⟨ 24 -9 -66 -70 -172 -128 ]]

POTE generator: ~1024/945 = 137.768

Template:Val list

Badness: 0.062187

11-limit

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 5632/5625, 102487/102400

Mapping: [3 2 8 16 9], 0 8 -3 -22 4]]

POTE generator: ~693/640 = 137.771

Optimal GPV sequence: Template:Val list

Badness: 0.023085

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 676/675, 1001/1000, 3025/3024, 4096/4095

Mapping: [3 2 8 16 9 8], 0 8 -3 -22 4 9]]

POTE generator: ~13/12 = 137.777

Optimal GPV sequence: Template:Val list

Badness: 0.015557

Terture

Subgroup: 2.3.5.7

Comma list: 250047/250000, 359661568/358722675

Mapping: [3 4 3 2], 0 4 21 34]]

POTE generator: ~392/375 = 75.555

Template:Val list

Badness: 0.087156

11-limit

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 19712/19683, 102487/102400

Mapping: [3 4 3 2 10], 0 4 21 34 2]]

POTE generator: ~392/375 = 75.550

Optimal GPV sequence: Template:Val list

Badness: 0.029326

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 676/675, 1001/1000, 3025/3024, 10985/10976

Mapping: [3 4 3 2 10 6], 0 4 21 34 2 27]]

POTE generator: ~117/112 = 75.553

Optimal GPV sequence: Template:Val list

Badness: 0.018647

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 676/675, 715/714, 936/935, 1001/1000, 4928/4913

Mapping: [3 4 3 2 10 6 10], 0 4 21 34 2 27 12]]

POTE generator: ~117/112 = 75.560

Optimal GPV sequence: Template:Val list

Badness: 0.018705

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 676/675, 715/714, 936/935, 1001/1000, 1216/1215, 1617/1615

Mapping: [3 4 3 2 10 6 10 5], 0 4 21 34 2 27 12 41]]

POTE generator: ~95/91 = 75.560

Optimal GPV sequence: Template:Val list

Badness: 0.013902

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 460/459, 529/528, 676/675, 715/714, 936/935, 1001/1000, 1216/1215

Mapping: [3 4 3 2 10 6 10 5 13], 0 4 21 34 2 27 12 41 3]]

POTE generator: ~24/23 = 75.548

Optimal GPV sequence: Template:Val list

Badness: 0.014915

Akjayland

Akjayland tempers out the akjaysma in addition to landscape comma, and thereby features a period of 1\21.

Subgroup: 2.3.5.7

Comma list: 250047/250000, [43 -1 -13 -4

Mapping: [21 1 38 102], 0 3 1 -4]]

Mapping generators: ~1323/1280, ~131072/91875

Optimal tuning (CTE): ~131072/91875 = 614.9354

Optimal GPV sequence: Template:Val list

Badness: 0.0309

Vasca

Vasca can be described as the 357 & 525 temperament, extended as high as the 23-limit. It tempers out the [95 0 0 0 0 0 0 0 -21, and sets a stack of 21 23/16's equal with 11 octaves. The name derives from elements vanadium (23) and scandium (21), since this uses the 23rd harmonic, which itself is extremely well represented in 21edo.

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 102487/102400, [39 -4 -11 -5 2

Mapping: [21 4 39 98 58], 0 6 2 -8 3 3]]

Mapping generators: ~1323/1280, ~6615/5632

Optimal tuning (CTE): ~6615/5632 = 278.8998

Optimal GPV sequence: Template:Val list

Badness: 0.0949

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 3025/3024, 4096/4095, 14641/14625, 85750/85683

Mapping: [21 4 39 98 58 107], 0 6 2 -8 3 -6]]

Optimal tuning (CTE): ~168/143 = 278.9058

Optimal GPV sequence: Template:Val list

Badness: 0.0551

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 2601/2600, 3025/3024, 4096/4095, 8624/8619, 14641/14625

Mapping: [21 4 39 98 58 107 120], 0 6 2 -8 3 -6 -7]]

Optimal tuning (CTE): ~168/143 = 278.9036

Optimal GPV sequence: Template:Val list

Badness: 0.0319

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 2376/2375, 2601/2600, 2926/2925, 3025/3024, 3213/3211, 4096/4095

Mapping: [21 4 39 98 58 107 120 16], 0 6 2 -8 3 -6 -7 15]]

Optimal tuning (CTE): ~168/143 = 278.9036

Optimal GPV sequence: Template:Val list

Badness: 0.0270

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 1496/1495, 2376/2375, 2601/2600, 2646/2645, 2926/2925, 3025/3024, 3213/3211

Mapping: [21 34 49 58 73 77 85 91 95], 0 -6 -2 8 -3 6 7 -15 0]]

Optimal tuning (CTE): ~168/143 = 278.8971

Optimal GPV sequence: Template:Val list

Badness: 0.0199

Chromium

Chromium is described as the 72 & 624 temperament, and named after the 24th element for being period 24.

Subgroup: 2.3.5.7

Comma list: 250047/250000, 49589822592/49433168575

Mapping: [24 1 -6 18], 0 3 5 4]]

Mapping generators: ~250/243, ~10/7

Optimal tuning (CTE): ~10/7 = 617.2710

Template:Val list

Badness: 0.139

11-limit

Subgroup: 2.3.5.7.11

Comma list: 9801/9800, 46656/46585, 250047/250000

Mapping: [24 1 -6 18 46], 0 3 5 4 3]]

Optimal tuning (CTE): ~10/7 = 617.2597

Optimal GPV sequence: Template:Val list

Badness: 0.0398

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 2080/2079, 34398/34375, 39366/39325

Mapping: [24 1 -6 18 46 -47 -13], 0 3 5 4 3 11]]

Optimal tuning (CTE): ~10/7 = 617.2869

Optimal GPV sequence: Template:Val list

Badness: 0.0293

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 936/935, 1701/1700, 1716/1715, 2025/2023, 11016/11011

Mapping: [24 1 -6 18 46 -47 -13], 0 3 5 4 3 11 9]]

Optimal tuning (CTE): ~10/7 = 617.2732

Optimal GPV sequence: Template:Val list

Badness: 0.0209