Limmic temperaments

Revision as of 00:07, 8 January 2022 by Xenllium (talk | contribs)

This limmic temperaments page collects various temperaments tempering out the Pythagorean limma, 256/243. As a consequence, 3/2 is always represented by 3\5, 720 cents assuming pure octaves. While quite sharp, this is close enough to a just fifth to serve as a fifth, and some people are fond of it.

Blacksmith

5-limit (blackwood)

Subgroup: 2.3.5

Comma list: 256/243

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

Mapping generators: ~9/8, ~5

POTE generator: ~5/4 = 399.594

Template:Val list

Badness: 0.063760

7-limit

 
Lattice of blacksmith

Subgroup: 2.3.5.7

Comma list: 28/27, 49/48

Mapping: [5 8 0 14], 0 0 1 0]]

Mapping generators: ~7/6, ~5

Wedgie⟨⟨ 0 5 0 8 0 -14 ]]

POTE generator: ~5/4 = 392.767

Template:Val list

Badness: 0.025640

11-limit

Subgroup: 2.3.5.7.11

Comma list: 28/27, 49/48, 55/54

Mapping: [5 8 0 14 29], 0 0 1 0 -1]]

POTE generator: ~5/4 = 394.948

Optimal GPV sequence: Template:Val list

Badness: 0.024641

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 28/27, 40/39, 49/48, 55/54

Mapping: [5 8 0 14 29 7], 0 0 1 0 -1 1]]

POTE generator: ~5/4 = 391.037

Optimal GPV sequence: Template:Val list

Badness: 0.020498

Farrier

Subgroup: 2.3.5.7.11

Comma list: 28/27, 49/48, 77/75

Mapping: [5 8 0 14 -6], 0 0 1 0 2]]

POTE generator: ~5/4 = 398.070

Optimal GPV sequence: Template:Val list

Badness: 0.029200

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 28/27, 40/39, 49/48, 66/65

Mapping: [5 8 0 14 -6 7], 0 0 1 0 2 1]]

POTE generator: ~5/4 = 396.812

Optimal GPV sequence: Template:Val list

Badness: 0.022325

Ferrum

Subgroup: 2.3.5.7.11

Comma list: 28/27, 35/33, 49/48

Mapping: [5 8 0 14 6], 0 0 1 0 1]]

POTE generator: ~5/4 = 374.763

Optimal GPV sequence: Template:Val list

Badness: 0.030883

Blackweed

Blackweed is so named because the 20EDO tuning has 4\20 as the period and 420¢ as the generator.

Subgroup: 2.3.11/7

Comma list: 256/243

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

Mapping generators: ~9/8, ~11/7

POTE generator: ~14/11 = 413.7785

Template:Val list