Minortonic family

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The minortonic family tempers out the minortone comma (also known as "minortonma"), [-16 35 -17. The head of this family is five-limit minortone temperament, with generator a minor tone.

Minortone

Subgroup: 2.3.5

Comma: [-16 35 -17

Mapping: [1 -1 -3], 0 17 35]]

POTE generator: ~10/9 = 182.466

Optimal GPV sequence46, 125, 171, 388, 559, 730, 1289, 2019, 2749, 4768, 16323, 21091

Badness: 0.029765

Mitonic

As a 5-limit temperament, mitonic becomes minortonic, a super-accurate microtemperament tempering out the minortone comma, [-16 35 -17. Flipping that gives the 5-limit wedgie ⟨⟨17 35 16]], which tells us that 10/9 can be taken as the generator, with 17 of them giving a 6, 18 of them a 20/3, and 35 of them giving a 40. The generator should be tuned about 1/16 of a cent flat, with 61/17 being 0.06423 cents flat and 401/35 being 0.06234 cents flat. 171, 559 and 730 are possible equal temperament tunings.

However, as noted before, 32/21 is only a ragisma shy of (10/9)4, and so a 7-limit interpretation, if not quite so super-accurate, is more or less inevitable. While 559 or 730 are still fine as tunings, the error of the 7-limit is lower by a whisker in 171edo. 21 generators gives a 64/7. MOS of size 20, 33, 46 or 79 notes can be used for mitonic.

Subgroup: 2.3.5.7

Comma list: 4375/4374, 2100875/2097152

Mapping: [1 -1 -3 6], 0 17 35 -21]]

Wedgie⟨⟨17 35 -21 16 -81 -147]]

POTE generator: ~10/9 = 182.458

Optimal GPV sequence46, 125, 171, 1927d, 2098d, …, 3637bcdd

Badness: 0.025184

Mineral

Extending mitonic to the 11-limit is not so simple. There are two mappings that are comparable in complexity and error: mineral (46&171) and ore (46&125). The mineral temperament tempers out 441/440 and 16384/16335 in the 11-limit. In the 17-limit, both mineral and ore temper out 833/832, 1225/1224, 1701/1700, and 4096/4095 (2.3.5.7.13.17 commas). The word "mineral" is related to "mine" (an excavation from which ore or solid minerals are taken) and "miner" (a person who works in a mine, also as a pun on "minor").

Subgroup: 2.3.5.7.11

Comma list: 441/440, 4375/4374, 16384/16335

Mapping: [1 -1 -3 6 10], 0 17 35 -21 -43]]

POTE generator: ~10/9 = 182.482

Optimal GPV sequence: 46, 125e, 171, 217, 605ee, 822dee

Badness: 0.059060

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440, 3584/3575, 4375/4374

Mapping: [1 -1 -3 6 10 11], 0 17 35 -21 -43 -48]]

POTE generator: ~10/9 = 182.481

Optimal GPV sequence: 46, 125e, 171, 217, 605ee, 822dee

Badness: 0.033140

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 364/363, 441/440, 595/594, 1156/1155, 3584/3575

Mapping: [1 -1 -3 6 10 11 5], 0 17 35 -21 -43 -48 -6]]

POTE generator: ~10/9 = 182.481

Optimal GPV sequence: 46, 125e, 171, 217, 605ee, 822dee

Badness: 0.019792

Ore

The ore temperament tempers out 385/384 and 1331/1323 in the 11-limit, and maps 11/8 to three generators.

Subgroup: 2.3.5.7.11

Comma list: 385/384, 1331/1323, 4375/4374

Mapping: [1 -1 -3 6 3], 0 17 35 -21 3]]

POTE generator: ~10/9 = 182.449

Optimal GPV sequence: 46, 125, 171e

Badness: 0.053662

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 385/384, 1331/1323, 3267/3250

Mapping: [1 -1 -3 6 3 11], 0 17 35 -21 3 -48]]

POTE generator: ~10/9 = 182.470

Optimal GPV sequence: 46, 125, 171e, 388ee

Badness: 0.046170

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 352/351, 385/384, 561/560, 715/714, 1452/1445

Mapping: [1 -1 -3 6 3 11 5], 0 17 35 -21 3 -48 -6]]

POTE generator: ~10/9 = 182.471

Optimal GPV sequence: 46, 125, 171e, 388ee

Badness: 0.028423

Goldmine

The goldmine temperament (46&79) is another 13-limit extension of ore, equating 13/12 with 14/13 and 16/13 with two 10/9s.

Subgroup: 2.3.5.7.11.13

Comma list: 169/168, 325/324, 385/384, 1331/1323

Mapping: [1 -1 -3 6 3 4], 0 17 35 -21 3 -2]]

POTE generator: ~10/9 = 182.437

Optimal GPV sequence: 46, 79, 125f, 171ef, 296eff

Badness: 0.039302

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 169/168, 273/272, 325/324, 385/384, 1331/1323

Mapping: [1 -1 -3 6 3 4 5], 0 17 35 -21 3 -2 -6]]

POTE generator: ~10/9 = 182.444

Optimal GPV sequence: 46, 125f, 171ef

Badness: 0.027440

Seminar

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 4375/4374, 2100875/2097152

Mapping: [2 -2 -6 12 13], 0 17 35 -21 -20]]

POTE generator: ~10/9 = 182.457

Optimal GPV sequence: 46, 204c, 250, 296, 342

Badness: 0.026808

Domain

Domain temperament adds the landscape comma, 250047/250000, to the minortone comma, giving a temperament which is perhaps most notable for its inclusion of the remarkable subgroup temperament terrain.

Subgroup: 2.3.5.7

Comma list: 250047/250000, 645700815/645657712

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

POTE generator: ~10/9 = 182.467

Optimal GPV sequence171, 1164, 1335, 1506, 1677, 1848, 2019, 11943, 13962, 15981, 18000, 20019, 22038

Badness: 0.013979