Würschmidt family
Würschmidt
The 5-limit parent comma for the würschmidt family is 393216/390625, known as Würschmidt's comma, and named after José Würschmidt, Its monzo is |17 1 -8>, and flipping that yields <<8 1 17|| for the wedgie. This tells us the generator is a major third, and that to get to the interval class of fifths will require eight of these. In fact, (5/4)^8 * 393216/390625 = 6. 10\31, 11\34 or 21\65 are possible generators and other tunings include 96edo, 99edo and 164edo. Another tuning solution is to sharpen the major third by 1/8th of a Würschmidt comma, which is to say by 1.43 cents, and thereby achieve pure fifths; this is the minimax tuning. Würschmidt is well-supplied with MOS scales, with 10, 13, 16, 19, 22, 25, 28, 31 and 34 note MOS all possibilities.
POTE generator: 387.799
Map: [<1 7 3|, <0 -8 -1|]
EDOs: 31, 34, 65, 99, 164, 721c, 885c
Ancient Stardust play by Chris Vaisvil
Würschmidt[13] in 5-limit minimax tuning
Extrospection by Jake Freivald; Würschmidt[16] tuned in 31et.
Seven limit children[edit]
The second comma of the normal comma list defines which 7-limit family member we are looking at. Wurschmidt adds |12 3 -6 -1>, worschmidt adds 65625/65536 = |-16 1 5 1>, whirrschmidt adds 4375/4374 = |-1 -7 4 1> and hemiwuerschmidt adds 6144/6125 = |11 1 -3 -2>.
Würschmidt[edit]
Würschmidt, aside from the commas listed above, also tempers out 225/224. 31edo or 127edo can be used as tunings. Würschmidt has <<8 1 18 -17 6 39|| for a wedgie. It extends naturally to an 11-limit version <<8 1 18 20 ,,,|| which also tempers out 99/98, 176/175 and 243/242. 127edo is again an excellent tuning for 11-limit wurschmidt, as well as for minerva, the 11-limit rank three temperament tempering out 99/98 and 176/175.
Commas: 225/224, 8748/8575
POTE generator: 387.383
Map: [<1 7 3 15|, <0 -8 -1 -18|]
EDOs: 31, 96, 127, 28bd, 412bd
Badness: 0.0508
11-limit[edit]
Commas: 99/98, 176/175, 243/242
POTE generator: ~5/4 = 387.447
Map: [<1 7 3 15 17|, <0 -8 -1 -18 -20|]
EDOs: 31, 65d, 96, 127, 223d
Badness: 0.0244
13-limit[edit]
Commas: 99/98, 144/143, 176/175, 275/273
POTE generator: ~5/4 = 387.626
Map: [<1 7 3 15 17 1|, <0 -8 -1 -18 -20 4|]
EDOs: 31, 65d, 161df
Badness: 0.0236
Worseschmidt[edit]
Commas: 66/65, 99/98, 105/104, 243/242
POTE generator: ~5/4 = 387.099
Map: [<1 7 3 15 17 22|, <0 -8 -1 -18 -20 -27|]
EDOs: 31
Badness: 0.0344
Worschmidt[edit]
Worschmidt tempers out 126/125 rather than 225/224, and can use 31edo, 34edo, or 127edo as a tuning. If 127 is used, note that the val is <127 201 295 356| and not <127 201 295 357| as with wurschmidt. The wedgie now is <<8 1 -13 -17 -43 -33|. In practice, of course, both mappings could be used ambiguously, which might be an interesting avenue for someone to explore.
Commas: 126/125, 33075/32768
POTE generator: 387.392
Map: [<1 7 3 -6|, <0 -8 -1 13|]
Badness: 0.0646
11-limit[edit]
Commas: 126/125, 243/242, 385/384
POTE generator: ~5/4 = 387.407
Map: [<1 7 3 -6 17|, <0 -8 -1 13 -20|]
EDOs: 31, 65, 96d, 127d
Badness: 0.0334
Whirrschmidt[edit]
99edo is such a good tuning for whirrschimdt that we hardly need look any farther. Unfortunately, the temperament while accurate is complex, with <<8 1 52 -17 60 118|| for a wedgie.
Commas: 4375/4374, 393216/390625
POTE generator: 387.881
Map: [<1 7 3 38|, <0 -8 -1 -52|]
Hemiwürschmidt[edit]
Hemiwürschmidt, which splits the major third in two and uses that for a generator, is the most important of these temperaments even with the rather large complexity for the fifth. It tempers out 3136/3125, 6144/6125 and 2401/2400. 68edo, 99edo and 130edo can all be used as tunings, but 130 is not only the most accurate, it shows how hemiwürschmidt extends to a higher limit temperament, <<16 2 5 40 -39 -49 -48 28...
Commas: 2401/2400, 3136/3125
POTE generator: ~28/25 = 193.898
Map: [<1 15 4 7|, <0 -16 -2 -5|]
<<16 2 5 -34 -37 6||
EDOs: 6, 31, 37, 68, 99, 229, 328, 557c, 885c
Badness: 0.0203
11-limit[edit]
Commas: 243/242, 441/440, 3136/3125
POTE generator: ~28/25 = 193.840
Map: [<1 15 4 7 37|, <0 -16 -2 -5 -40|]
EDOs: 31, 99e, 130, 650ce, 811ce
Badness: 0.0211
13-limit[edit]
Commas: 243/242 351/350 441/440 3584/3575
POTE generator: ~28/25 = 193.840
Map: [<1 15 4 7 37 -29|, <0 -16 -2 -5 -40 39|]
EDOs: 31, 99e, 130, 291, 421e, 551ce
Badness: 0.0231
Hemithir[edit]
Commas: 121/120 176/175 196/195 275/273
POTE generator: ~28/25 = 193.918
Map: [<1 15 4 7 37 -3|, <0 -16 -2 -5 -40 8|]
EDOs: 31, 68e, 99ef
Badness: 0.0312
Hemiwur[edit]
Commas: 121/120, 176/175, 1375/1372
POTE generator: ~28/25 = 193.884
Map: [<1 15 4 7 11|, <0 -16 -2 -5 -9|]
EDOs: 6, 31, 68, 99, 130e, 229e
Badness: 0.0293
13-limit[edit]
Commas: 121/120, 176/175, 196/195, 275/273
POTE generator: ~28/25 = 194.004
Map: [<1 15 4 7 11 -3|, <0 -16 -2 -5 -9 8|]
EDOs: 6, 31, 68, 99f, 167ef
Badness: 0.0284
Hemiwar[edit]
Commas: 66/65, 105/104, 121/120, 1375/1372
POTE generator: ~28/25 = 193.698
Map: [<1 15 4 7 11 23|, <0 -16 -2 -5 -9 -23|]
EDOs: 31
Badness: 0.0449
Relationships to other temperaments[edit]
2-Würschmidt, the temperament with all the same commas as Würschmidt but a generator of twice the size, is equivalent to skwares as a 2.3.7.11 temperament.