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== Intervals == | == Intervals == | ||
{| class="wikitable center-1 right-2 left-3 center-4 center-5" | |||
|- | |||
|+ style="white-space:nowrap" | Intervals in 45zpi | |||
| colspan="3" style="text-align:left;" | JI ratios are comprised of 32-integer limit ratios,<br>and are stylized as follows to indicate their accuracy: | |||
* '''<u>Bold Underlined:</u>''' relative error < 8.333 % | |||
* '''Bold:''' relative error < 16.667 % | |||
* Normal: relative error < 25 % | |||
* <small>Small:</small> relative error < 33.333 % | |||
* <small><small>Small Small:</small></small> relative error < 41.667 % | |||
* <small><small><small>Small Small Small:</small></small></small> relative error < 50 % | |||
| colspan="2" style="text-align:right;" | <center>'''⟨73 116] at every 5 steps'''</center><br>[[9/8|Whole tone]] = 13 steps<br>[[256/243|Limma]] = 4 steps<br>[[2187/2048|Apotome]] = 9 steps | |||
|- | |||
! Degree | |||
! Cents | |||
! Ratios | |||
! Ups and Downs Notation | |||
! Step | |||
|- | |||
| 0 | |||
| 0.000 | |||
| | |||
| P1 | |||
| 0 | |||
|- | |||
| 1 | |||
| 82.223 | |||
| <small>[[32/31]]</small>, <small>[[31/30]]</small>, <small>[[30/29]]</small>, <small>[[29/28]]</small>, [[28/27]], [[27/26]], [[26/25]], '''[[25/24]]''', '''[[24/23]]''', '''<u>[[23/22]]'''</u>, '''<u>[[22/21]]'''</u>, '''<u>[[21/20]]'''</u>, '''<u>[[20/19]]'''</u>, '''[[19/18]]''', [[18/17]], <small>[[17/16]]</small>, <small><small>[[16/15]]</small></small>, <small><small>[[31/29]]</small></small>, <small><small><small>[[15/14]]</small></small></small> | |||
| ^m2 | |||
| 5 | |||
|- | |||
| 2 | |||
| 164.446 | |||
| <small><small><small>[[29/27]]</small></small></small>, <small><small><small>[[14/13]]</small></small></small>, <small><small>[[27/25]]</small></small>, <small>[[13/12]]</small>, [[25/23]], [[12/11]], '''[[23/21]]''', '''<u>[[11/10]]'''</u>, '''<u>[[32/29]]'''</u>, '''[[21/19]]''', '''[[31/28]]''', [[10/9]], <small>[[29/26]]</small>, <small><small>[[19/17]]</small></small>, <small><small>[[28/25]]</small></small>, <small><small><small>[[9/8]]</small></small></small> | |||
| vvvM2 | |||
| 10 | |||
|- | |||
| 3 | |||
| 246.669 | |||
| <small><small><small>[[26/23]]</small></small></small>, <small><small>[[17/15]]</small></small>, <small>[[25/22]]</small>, [[8/7]], '''[[31/27]]''', '''<u>[[23/20]]'''</u>, '''<u>[[15/13]]'''</u>, '''[[22/19]]''', '''[[29/25]]''', [[7/6]], <small><small>[[27/23]]</small></small>, <small><small><small>[[20/17]]</small></small></small> | |||
| ^^M2, vvm3 | |||
| 15 | |||
|- | |||
| 4 | |||
| 328.892 | |||
| <small><small><small>[[13/11]]</small></small></small>, <small><small><small>[[32/27]]</small></small></small>, <small><small>[[19/16]]</small></small>, <small>[[25/21]]</small>, <small>[[31/26]]</small>, '''[[6/5]]''', '''<u>[[29/24]]'''</u>, '''<u>[[23/19]]'''</u>, '''[[17/14]]''', '''[[28/23]]''', [[11/9]], <small>[[27/22]]</small>, <small><small>[[16/13]]</small></small>, <small><small><small>[[21/17]]</small></small></small>, <small><small><small>[[26/21]]</small></small></small> | |||
| ^^^m3 | |||
| 20 | |||
|- | |||
| 5 | |||
| 411.116 | |||
| <small><small><small>[[31/25]]</small></small></small>, <small>[[5/4]]</small>, '''[[29/23]]''', '''<u>[[24/19]]'''</u>, '''<u>[[19/15]]'''</u>, '''<u>[[14/11]]'''</u>, '''[[23/18]]''', [[32/25]], <small>[[9/7]]</small>, <small><small>[[31/24]]</small></small>, <small><small><small>[[22/17]]</small></small></small> | |||
| vM3 | |||
| 25 | |||
|- | |||
| 6 | |||
| 493.339 | |||
| <small><small><small>[[13/10]]</small></small></small>, <small><small>[[30/23]]</small></small>, <small><small>[[17/13]]</small></small>, <small>[[21/16]]</small>, [[25/19]], [[29/22]], '''<u>[[4/3]]'''</u>, <small>[[31/23]]</small>, <small>[[27/20]]</small>, <small><small>[[23/17]]</small></small>, <small><small><small>[[19/14]]</small></small></small> | |||
| P4 | |||
| 30 | |||
|- | |||
| 7 | |||
| 575.562 | |||
| <small><small><small>[[15/11]]</small></small></small>, <small><small>[[26/19]]</small></small>, <small>[[11/8]]</small>, [[29/21]], '''[[18/13]]''', '''<u>[[25/18]]'''</u>, '''<u>[[32/23]]'''</u>, '''[[7/5]]''', [[31/22]], <small>[[24/17]]</small>, <small><small>[[17/12]]</small></small>, <small><small>[[27/19]]</small></small> | |||
| v<sup>4</sup>A4 | |||
| 35 | |||
|- | |||
| 8 | |||
| 657.785 | |||
| <small><small><small>[[10/7]]</small></small></small>, <small><small>[[23/16]]</small></small>, <small>[[13/9]]</small>, [[29/20]], '''[[16/11]]''', '''<u>[[19/13]]'''</u>, '''<u>[[22/15]]'''</u>, '''[[25/17]]''', '''[[28/19]]''', [[31/21]] | |||
| vvv5 | |||
| 40 | |||
|- | |||
| 9 | |||
| 740.008 | |||
| <small><small><small>[[3/2]]</small></small></small>, '''[[32/21]]''', '''[[29/19]]''', '''<u>[[26/17]]'''</u>, '''<u>[[23/15]]'''</u>, '''<u>[[20/13]]'''</u>, '''[[17/11]]''', [[31/20]], <small>[[14/9]]</small>, <small><small>[[25/16]]</small></small> | |||
| ^^5, vvm6 | |||
| 45 | |||
|- | |||
| 10 | |||
| 822.231 | |||
| <small><small><small>[[11/7]]</small></small></small>, <small><small>[[30/19]]</small></small>, <small>[[19/12]]</small>, <small>[[27/17]]</small>, '''[[8/5]]''', '''<u>[[29/18]]'''</u>, '''[[21/13]]''', [[13/8]], <small>[[31/19]]</small>, <small><small>[[18/11]]</small></small>, <small><small><small>[[23/14]]</small></small></small> | |||
| ^^^m6 | |||
| 50 | |||
|- | |||
| 11 | |||
| 904.454 | |||
| <small><small><small>[[28/17]]</small></small></small>, [[5/3]], '''<u>[[32/19]]'''</u>, '''<u>[[27/16]]'''</u>, '''<u>[[22/13]]'''</u>, [[17/10]], [[29/17]], <small><small>[[12/7]]</small></small>, <small><small><small>[[31/18]]</small></small></small> | |||
| vM6 | |||
| 55 | |||
|- | |||
| 12 | |||
| 986.677 | |||
| <small><small><small>[[19/11]]</small></small></small>, <small><small><small>[[26/15]]</small></small></small>, [[7/4]], '''<u>[[30/17]]'''</u>, '''<u>[[23/13]]'''</u>, '''[[16/9]]''', [[25/14]], <small><small>[[9/5]]</small></small> | |||
| m7 | |||
| 60 | |||
|- | |||
| 13 | |||
| 1068.901 | |||
| <small><small><small>[[29/16]]</small></small></small>, <small><small>[[20/11]]</small></small>, <small><small>[[31/17]]</small></small>, [[11/6]], '''[[24/13]]''', '''<u>[[13/7]]'''</u>, '''[[28/15]]''', [[15/8]], <small>[[32/17]]</small>, <small><small>[[17/9]]</small></small> | |||
| v<sup>4</sup>M7 | |||
| 65 | |||
|- | |||
| 14 | |||
| 1151.124 | |||
| <small><small><small>[[19/10]]</small></small></small>, <small><small>[[21/11]]</small></small>, <small>[[23/12]]</small>, [[25/13]], [[27/14]], '''[[29/15]]''', '''<u>[[31/16]]'''</u> | |||
| ^M7 | |||
| 70 | |||
|- | |||
| 15 | |||
| 1233.347 | |||
| <small><small>[[2/1]]</small></small>, <small>[[31/15]]</small>, <small>[[29/14]]</small>, <small><small>[[27/13]]</small></small>, <small><small><small>[[25/12]]</small></small></small> | |||
| ^^1 +1 oct, vvm2 +1 oct | |||
| 75 | |||
|- | |||
| 16 | |||
| 1315.570 | |||
| <small><small><small>[[23/11]]</small></small></small>, <small><small>[[21/10]]</small></small>, <small>[[19/9]]</small>, '''[[17/8]]''', '''<u>[[32/15]]'''</u>, '''<u>[[15/7]]'''</u>, '''[[28/13]]''', <small>[[13/6]]</small>, <small><small><small>[[24/11]]</small></small></small> | |||
| ^^^m2 +1 oct | |||
| 80 | |||
|- | |||
| 17 | |||
| 1397.793 | |||
| <small><small>[[11/5]]</small></small>, <small>[[31/14]]</small>, [[20/9]], '''[[29/13]]''', '''<u>[[9/4]]'''</u>, <small>[[25/11]]</small>, <small><small>[[16/7]]</small></small> | |||
| vM2 +1 oct | |||
| 85 | |||
|- | |||
| 18 | |||
| 1480.016 | |||
| <small><small><small>[[23/10]]</small></small></small>, <small><small>[[30/13]]</small></small>, '''[[7/3]]''', '''[[26/11]]''', [[19/8]], <small>[[31/13]]</small>, <small><small><small>[[12/5]]</small></small></small> | |||
| m3 +1 oct | |||
| 90 | |||
|- | |||
| 19 | |||
| 1562.239 | |||
| <small><small><small>[[29/12]]</small></small></small>, <small>[[17/7]]</small>, [[22/9]], '''[[27/11]]''', '''<u>[[32/13]]'''</u>, <small>[[5/2]]</small> | |||
| v<sup>4</sup>M3 +1 oct | |||
| 95 | |||
|- | |||
| 20 | |||
| 1644.462 | |||
| <small>[[28/11]]</small>, [[23/9]], '''[[18/7]]''', '''<u>[[31/12]]'''</u>, '''[[13/5]]''', <small>[[21/8]]</small>, <small><small>[[29/11]]</small></small> | |||
| ^M3 +1 oct | |||
| 100 | |||
|- | |||
| 21 | |||
| 1726.686 | |||
| <small><small>[[8/3]]</small></small>, '''[[27/10]]''', '''<u>[[19/7]]'''</u>, '''[[30/11]]''', <small>[[11/4]]</small> | |||
| ^^4 +1 oct | |||
| 105 | |||
|- | |||
| 22 | |||
| 1808.909 | |||
| <small><small><small>[[25/9]]</small></small></small>, <small>[[14/5]]</small>, [[31/11]], '''<u>[[17/6]]'''</u>, '''[[20/7]]''', [[23/8]], <small><small>[[26/9]]</small></small>, <small><small><small>[[29/10]]</small></small></small>, <small><small><small>[[32/11]]</small></small></small> | |||
| ^^^d5 +1 oct | |||
| 110 | |||
|- | |||
| 23 | |||
| 1891.132 | |||
| '''[[3/1]]''' | |||
| v5 +1 oct | |||
| 115 | |||
|- | |||
| 24 | |||
| 1973.355 | |||
| [[31/10]], '''[[28/9]]''', '''<u>[[25/8]]'''</u>, '''[[22/7]]''', <small>[[19/6]]</small>, <small><small><small>[[16/5]]</small></small></small> | |||
| m6 +1 oct | |||
| 120 | |||
|- | |||
| 25 | |||
| 2055.578 | |||
| <small><small>[[29/9]]</small></small>, [[13/4]], '''<u>[[23/7]]'''</u>, <small><small>[[10/3]]</small></small> | |||
| v<sup>4</sup>M6 +1 oct | |||
| 125 | |||
|- | |||
| 26 | |||
| 2137.801 | |||
| <small><small>[[27/8]]</small></small>, [[17/5]], '''<u>[[24/7]]'''</u>, '''<u>[[31/9]]'''</u>, <small><small>[[7/2]]</small></small> | |||
| ^M6 +1 oct | |||
| 130 | |||
|- | |||
| 27 | |||
| 2220.024 | |||
| <small>[[32/9]]</small>, [[25/7]], '''<u>[[18/5]]'''</u>, '''[[29/8]]''', <small><small>[[11/3]]</small></small> | |||
| ^^m7 +1 oct | |||
| 135 | |||
|- | |||
| 28 | |||
| 2302.247 | |||
| <small><small>[[26/7]]</small></small>, [[15/4]], '''[[19/5]]''', <small>[[23/6]]</small>, <small><small><small>[[27/7]]</small></small></small> | |||
| vvM7 +1 oct | |||
| 140 | |||
|- | |||
| 29 | |||
| 2384.471 | |||
| <small><small><small>[[31/8]]</small></small></small>, [[4/1]] | |||
| v1 +2 oct | |||
| 145 | |||
|- | |||
| 30 | |||
| 2466.694 | |||
| '''<u>[[29/7]]'''</u>, '''<u>[[25/6]]'''</u>, [[21/5]], <small><small><small>[[17/4]]</small></small></small> | |||
| m2 +2 oct | |||
| 150 | |||
|- | |||
| 31 | |||
| 2548.917 | |||
| <small><small>[[30/7]]</small></small>, '''[[13/3]]''', [[22/5]], <small>[[31/7]]</small> | |||
| v<sup>4</sup>M2 +2 oct | |||
| 155 | |||
|- | |||
| 32 | |||
| 2631.140 | |||
| <small>[[9/2]]</small>, '''<u>[[32/7]]'''</u>, '''[[23/5]]''', <small><small><small>[[14/3]]</small></small></small> | |||
| ^M2 +2 oct | |||
| 160 | |||
|- | |||
| 33 | |||
| 2713.363 | |||
| [[19/4]], '''<u>[[24/5]]'''</u>, [[29/6]] | |||
| ^^m3 +2 oct | |||
| 165 | |||
|- | |||
| 34 | |||
| 2795.586 | |||
| '''[[5/1]]''' | |||
| vvM3 +2 oct | |||
| 170 | |||
|- | |||
| 35 | |||
| 2877.809 | |||
| <small><small><small>[[31/6]]</small></small></small>, <small>[[26/5]]</small>, '''[[21/4]]''', [[16/3]] | |||
| v4 +2 oct | |||
| 175 | |||
|- | |||
| 36 | |||
| 2960.032 | |||
| <small><small><small>[[27/5]]</small></small></small>, '''[[11/2]]''', <small>[[28/5]]</small> | |||
| ^<sup>4</sup>4 +2 oct | |||
| 180 | |||
|- | |||
| 37 | |||
| 3042.256 | |||
| <small><small><small>[[17/3]]</small></small></small>, [[23/4]], '''<u>[[29/5]]'''</u> | |||
| v<sup>4</sup>5 +2 oct | |||
| 185 | |||
|- | |||
| 38 | |||
| 3124.479 | |||
| <small>[[6/1]]</small>, <small><small>[[31/5]]</small></small> | |||
| ^5 +2 oct | |||
| 190 | |||
|- | |||
| 39 | |||
| 3206.702 | |||
| <small><small>[[25/4]]</small></small>, '''[[19/3]]''', '''[[32/5]]''', <small><small>[[13/2]]</small></small> | |||
| ^^m6 +2 oct | |||
| 195 | |||
|- | |||
| 40 | |||
| 3288.925 | |||
| '''<u>[[20/3]]'''</u>, [[27/4]] | |||
| vvM6 +2 oct | |||
| 200 | |||
|- | |||
| 41 | |||
| 3371.148 | |||
| '''<u>[[7/1]]'''</u> | |||
| vm7 +2 oct | |||
| 205 | |||
|- | |||
| 42 | |||
| 3453.371 | |||
| <small>[[29/4]]</small>, '''<u>[[22/3]]'''</u>, <small><small><small>[[15/2]]</small></small></small> | |||
| ^<sup>4</sup>m7 +2 oct | |||
| 210 | |||
|- | |||
| 43 | |||
| 3535.594 | |||
| '''[[23/3]]''', '''[[31/4]]''' | |||
| M7 +2 oct | |||
| 215 | |||
|- | |||
| 44 | |||
| 3617.817 | |||
| [[8/1]] | |||
| ^1 +3 oct | |||
| 220 | |||
|- | |||
| 45 | |||
| 3700.041 | |||
| <small><small>[[25/3]]</small></small>, '''<u>[[17/2]]'''</u>, <small><small><small>[[26/3]]</small></small></small> | |||
| ^^m2 +3 oct | |||
| 225 | |||
|- | |||
| 46 | |||
| 3782.264 | |||
| <small>[[9/1]]</small> | |||
| vvM2 +3 oct | |||
| 230 | |||
|- | |||
| 47 | |||
| 3864.487 | |||
| '''<u>[[28/3]]'''</u>, <small><small>[[19/2]]</small></small> | |||
| vm3 +3 oct | |||
| 235 | |||
|- | |||
| 48 | |||
| 3946.710 | |||
| [[29/3]], <small><small><small>[[10/1]]</small></small></small> | |||
| ^<sup>4</sup>m3 +3 oct | |||
| 240 | |||
|- | |||
| 49 | |||
| 4028.933 | |||
| [[31/3]] | |||
| M3 +3 oct | |||
| 245 | |||
|- | |||
| 50 | |||
| 4111.156 | |||
| <small><small><small>[[21/2]]</small></small></small>, '''[[32/3]]''', <small><small><small>[[11/1]]</small></small></small> | |||
| ^4 +3 oct | |||
| 250 | |||
|- | |||
| 51 | |||
| 4193.379 | |||
| <small><small><small>[[23/2]]</small></small></small> | |||
| vvvA4 +3 oct | |||
| 255 | |||
|- | |||
| 52 | |||
| 4275.602 | |||
| <small>[[12/1]]</small> | |||
| vv5 +3 oct | |||
| 260 | |||
|- | |||
| 53 | |||
| 4357.826 | |||
| [[25/2]] | |||
| vm6 +3 oct | |||
| 265 | |||
|- | |||
| 54 | |||
| 4440.049 | |||
| '''<u>[[13/1]]'''</u> | |||
| ^<sup>4</sup>m6 +3 oct | |||
| 270 | |||
|- | |||
| 55 | |||
| 4522.272 | |||
| [[27/2]] | |||
| M6 +3 oct | |||
| 275 | |||
|- | |||
| 56 | |||
| 4604.495 | |||
| <small><small><small>[[14/1]]</small></small></small>, <small>[[29/2]]</small> | |||
| ^m7 +3 oct | |||
| 280 | |||
|- | |||
| 57 | |||
| 4686.718 | |||
| '''<u>[[15/1]]'''</u> | |||
| vvvM7 +3 oct | |||
| 285 | |||
|- | |||
| 58 | |||
| 4768.941 | |||
| <small>[[31/2]]</small>, <small><small>[[16/1]]</small></small> | |||
| ^^M7 +3 oct, vv1 +4 oct | |||
| 290 | |||
|- | |||
| 59 | |||
| 4851.164 | |||
| | |||
| vm2 +4 oct | |||
| 295 | |||
|- | |||
| 60 | |||
| 4933.387 | |||
| <small><small>[[17/1]]</small></small> | |||
| ^<sup>4</sup>m2 +4 oct | |||
| 300 | |||
|- | |||
| 61 | |||
| 5015.611 | |||
| '''[[18/1]]''' | |||
| M2 +4 oct | |||
| 305 | |||
|- | |||
| 62 | |||
| 5097.834 | |||
| '''<u>[[19/1]]'''</u> | |||
| ^m3 +4 oct | |||
| 310 | |||
|- | |||
| 63 | |||
| 5180.057 | |||
| '''<u>[[20/1]]'''</u> | |||
| vvvM3 +4 oct | |||
| 315 | |||
|- | |||
| 64 | |||
| 5262.280 | |||
| '''[[21/1]]''' | |||
| ^^M3 +4 oct, vv4 +4 oct | |||
| 320 | |||
|- | |||
| 65 | |||
| 5344.503 | |||
| '''<u>[[22/1]]'''</u> | |||
| ^^^4 +4 oct | |||
| 325 | |||
|- | |||
| 66 | |||
| 5426.726 | |||
| '''<u>[[23/1]]'''</u> | |||
| ^<sup>4</sup>d5 +4 oct | |||
| 330 | |||
|- | |||
| 67 | |||
| 5508.949 | |||
| '''[[24/1]]''' | |||
| P5 +4 oct | |||
| 335 | |||
|- | |||
| 68 | |||
| 5591.172 | |||
| [[25/1]] | |||
| ^m6 +4 oct | |||
| 340 | |||
|- | |||
| 69 | |||
| 5673.396 | |||
| <small><small>[[26/1]]</small></small>, <small><small>[[27/1]]</small></small> | |||
| vvvM6 +4 oct | |||
| 345 | |||
|- | |||
| 70 | |||
| 5755.619 | |||
| '''[[28/1]]''' | |||
| ^^M6 +4 oct, vvm7 +4 oct | |||
| 350 | |||
|- | |||
| 71 | |||
| 5837.842 | |||
| '''[[29/1]]''' | |||
| ^^^m7 +4 oct | |||
| 355 | |||
|- | |||
| 72 | |||
| 5920.065 | |||
| <small><small>[[30/1]]</small></small>, <small>[[31/1]]</small> | |||
| vM7 +4 oct | |||
| 360 | |||
|- | |||
| 73 | |||
| 6002.288 | |||
| '''<u>[[32/1]]'''</u> | |||
| P1 +5 oct | |||
| 365 | |||
|} | |||
== Approximation to JI == | == Approximation to JI == |
Revision as of 22:54, 11 August 2024
45 zeta peak index (abbreviated 45zpi), is the equal-step tuning system obtained from the 45th peak of the Riemann zeta function.
Tuning | Strength | Closest EDO | Integer limit | ||||||
---|---|---|---|---|---|---|---|---|---|
ZPI | Steps per octave | Step size (cents) | Height | Integral | Gap | EDO | Octave (cents) | Consistent | Distinct |
45zpi | 14.5944346577250 | 82.2231232756126 | 2.097730 | 0.344839 | 10.594800 | 15edo | 1233.34684913419 | 2 | 2 |
Theory
45zpi is characterized by a very broad octave error, yet it maintains a quite decent zeta strength. This combination makes it an ideal candidate for no-octave tuning applications.
No other zeta peak indexes exhibit both a larger octave error and greater zeta height than 45zpi.
45zpi supports a complex chord structure with ratios of 1:3:4:5:7:9:13:15:18:19:20:21:22:23:24:25, which further exemplifies its capabilities.
The closest zeta peak indexes to 45zpi that exceed its strength are 42zpi and 47zpi, though 43zpi is nearly as strong as 45zpi.
Harmonic series
Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +33.3 | -10.8 | -15.5 | +9.3 | +22.5 | +2.3 | +17.8 | -21.6 | -39.6 | -40.2 | -26.4 | -0.5 | +35.7 | -1.6 | -31.1 |
Relative (%) | +40.6 | -13.2 | -18.9 | +11.3 | +27.4 | +2.8 | +21.7 | -26.3 | -48.2 | -48.8 | -32.1 | -0.6 | +43.4 | -1.9 | -37.8 | |
Step | 15 | 23 | 29 | 34 | 38 | 41 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 57 | 58 |
Harmonic | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +28.4 | +11.7 | +0.3 | -6.3 | -8.5 | -6.8 | -1.5 | +7.0 | +18.5 | +32.9 | -32.5 | -13.2 | +8.3 | +31.8 | -25.0 | +2.3 |
Relative (%) | +34.6 | +14.2 | +0.4 | -7.6 | -10.3 | -8.3 | -1.9 | +8.5 | +22.6 | +40.0 | -39.5 | -16.1 | +10.1 | +38.7 | -30.4 | +2.8 | |
Step | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 69 | 70 | 71 | 72 | 72 | 73 |
Intervals
JI ratios are comprised of 32-integer limit ratios, and are stylized as follows to indicate their accuracy:
|
Whole tone = 13 steps Limma = 4 steps Apotome = 9 steps | |||
Degree | Cents | Ratios | Ups and Downs Notation | Step |
---|---|---|---|---|
0 | 0.000 | P1 | 0 | |
1 | 82.223 | 32/31, 31/30, 30/29, 29/28, 28/27, 27/26, 26/25, 25/24, 24/23, 23/22, 22/21, 21/20, 20/19, 19/18, 18/17, 17/16, 16/15, 31/29, 15/14 | ^m2 | 5 |
2 | 164.446 | 29/27, 14/13, 27/25, 13/12, 25/23, 12/11, 23/21, 11/10, 32/29, 21/19, 31/28, 10/9, 29/26, 19/17, 28/25, 9/8 | vvvM2 | 10 |
3 | 246.669 | 26/23, 17/15, 25/22, 8/7, 31/27, 23/20, 15/13, 22/19, 29/25, 7/6, 27/23, 20/17 | ^^M2, vvm3 | 15 |
4 | 328.892 | 13/11, 32/27, 19/16, 25/21, 31/26, 6/5, 29/24, 23/19, 17/14, 28/23, 11/9, 27/22, 16/13, 21/17, 26/21 | ^^^m3 | 20 |
5 | 411.116 | 31/25, 5/4, 29/23, 24/19, 19/15, 14/11, 23/18, 32/25, 9/7, 31/24, 22/17 | vM3 | 25 |
6 | 493.339 | 13/10, 30/23, 17/13, 21/16, 25/19, 29/22, 4/3, 31/23, 27/20, 23/17, 19/14 | P4 | 30 |
7 | 575.562 | 15/11, 26/19, 11/8, 29/21, 18/13, 25/18, 32/23, 7/5, 31/22, 24/17, 17/12, 27/19 | v4A4 | 35 |
8 | 657.785 | 10/7, 23/16, 13/9, 29/20, 16/11, 19/13, 22/15, 25/17, 28/19, 31/21 | vvv5 | 40 |
9 | 740.008 | 3/2, 32/21, 29/19, 26/17, 23/15, 20/13, 17/11, 31/20, 14/9, 25/16 | ^^5, vvm6 | 45 |
10 | 822.231 | 11/7, 30/19, 19/12, 27/17, 8/5, 29/18, 21/13, 13/8, 31/19, 18/11, 23/14 | ^^^m6 | 50 |
11 | 904.454 | 28/17, 5/3, 32/19, 27/16, 22/13, 17/10, 29/17, 12/7, 31/18 | vM6 | 55 |
12 | 986.677 | 19/11, 26/15, 7/4, 30/17, 23/13, 16/9, 25/14, 9/5 | m7 | 60 |
13 | 1068.901 | 29/16, 20/11, 31/17, 11/6, 24/13, 13/7, 28/15, 15/8, 32/17, 17/9 | v4M7 | 65 |
14 | 1151.124 | 19/10, 21/11, 23/12, 25/13, 27/14, 29/15, 31/16 | ^M7 | 70 |
15 | 1233.347 | 2/1, 31/15, 29/14, 27/13, 25/12 | ^^1 +1 oct, vvm2 +1 oct | 75 |
16 | 1315.570 | 23/11, 21/10, 19/9, 17/8, 32/15, 15/7, 28/13, 13/6, 24/11 | ^^^m2 +1 oct | 80 |
17 | 1397.793 | 11/5, 31/14, 20/9, 29/13, 9/4, 25/11, 16/7 | vM2 +1 oct | 85 |
18 | 1480.016 | 23/10, 30/13, 7/3, 26/11, 19/8, 31/13, 12/5 | m3 +1 oct | 90 |
19 | 1562.239 | 29/12, 17/7, 22/9, 27/11, 32/13, 5/2 | v4M3 +1 oct | 95 |
20 | 1644.462 | 28/11, 23/9, 18/7, 31/12, 13/5, 21/8, 29/11 | ^M3 +1 oct | 100 |
21 | 1726.686 | 8/3, 27/10, 19/7, 30/11, 11/4 | ^^4 +1 oct | 105 |
22 | 1808.909 | 25/9, 14/5, 31/11, 17/6, 20/7, 23/8, 26/9, 29/10, 32/11 | ^^^d5 +1 oct | 110 |
23 | 1891.132 | 3/1 | v5 +1 oct | 115 |
24 | 1973.355 | 31/10, 28/9, 25/8, 22/7, 19/6, 16/5 | m6 +1 oct | 120 |
25 | 2055.578 | 29/9, 13/4, 23/7, 10/3 | v4M6 +1 oct | 125 |
26 | 2137.801 | 27/8, 17/5, 24/7, 31/9, 7/2 | ^M6 +1 oct | 130 |
27 | 2220.024 | 32/9, 25/7, 18/5, 29/8, 11/3 | ^^m7 +1 oct | 135 |
28 | 2302.247 | 26/7, 15/4, 19/5, 23/6, 27/7 | vvM7 +1 oct | 140 |
29 | 2384.471 | 31/8, 4/1 | v1 +2 oct | 145 |
30 | 2466.694 | 29/7, 25/6, 21/5, 17/4 | m2 +2 oct | 150 |
31 | 2548.917 | 30/7, 13/3, 22/5, 31/7 | v4M2 +2 oct | 155 |
32 | 2631.140 | 9/2, 32/7, 23/5, 14/3 | ^M2 +2 oct | 160 |
33 | 2713.363 | 19/4, 24/5, 29/6 | ^^m3 +2 oct | 165 |
34 | 2795.586 | 5/1 | vvM3 +2 oct | 170 |
35 | 2877.809 | 31/6, 26/5, 21/4, 16/3 | v4 +2 oct | 175 |
36 | 2960.032 | 27/5, 11/2, 28/5 | ^44 +2 oct | 180 |
37 | 3042.256 | 17/3, 23/4, 29/5 | v45 +2 oct | 185 |
38 | 3124.479 | 6/1, 31/5 | ^5 +2 oct | 190 |
39 | 3206.702 | 25/4, 19/3, 32/5, 13/2 | ^^m6 +2 oct | 195 |
40 | 3288.925 | 20/3, 27/4 | vvM6 +2 oct | 200 |
41 | 3371.148 | 7/1 | vm7 +2 oct | 205 |
42 | 3453.371 | 29/4, 22/3, 15/2 | ^4m7 +2 oct | 210 |
43 | 3535.594 | 23/3, 31/4 | M7 +2 oct | 215 |
44 | 3617.817 | 8/1 | ^1 +3 oct | 220 |
45 | 3700.041 | 25/3, 17/2, 26/3 | ^^m2 +3 oct | 225 |
46 | 3782.264 | 9/1 | vvM2 +3 oct | 230 |
47 | 3864.487 | 28/3, 19/2 | vm3 +3 oct | 235 |
48 | 3946.710 | 29/3, 10/1 | ^4m3 +3 oct | 240 |
49 | 4028.933 | 31/3 | M3 +3 oct | 245 |
50 | 4111.156 | 21/2, 32/3, 11/1 | ^4 +3 oct | 250 |
51 | 4193.379 | 23/2 | vvvA4 +3 oct | 255 |
52 | 4275.602 | 12/1 | vv5 +3 oct | 260 |
53 | 4357.826 | 25/2 | vm6 +3 oct | 265 |
54 | 4440.049 | 13/1 | ^4m6 +3 oct | 270 |
55 | 4522.272 | 27/2 | M6 +3 oct | 275 |
56 | 4604.495 | 14/1, 29/2 | ^m7 +3 oct | 280 |
57 | 4686.718 | 15/1 | vvvM7 +3 oct | 285 |
58 | 4768.941 | 31/2, 16/1 | ^^M7 +3 oct, vv1 +4 oct | 290 |
59 | 4851.164 | vm2 +4 oct | 295 | |
60 | 4933.387 | 17/1 | ^4m2 +4 oct | 300 |
61 | 5015.611 | 18/1 | M2 +4 oct | 305 |
62 | 5097.834 | 19/1 | ^m3 +4 oct | 310 |
63 | 5180.057 | 20/1 | vvvM3 +4 oct | 315 |
64 | 5262.280 | 21/1 | ^^M3 +4 oct, vv4 +4 oct | 320 |
65 | 5344.503 | 22/1 | ^^^4 +4 oct | 325 |
66 | 5426.726 | 23/1 | ^4d5 +4 oct | 330 |
67 | 5508.949 | 24/1 | P5 +4 oct | 335 |
68 | 5591.172 | 25/1 | ^m6 +4 oct | 340 |
69 | 5673.396 | 26/1, 27/1 | vvvM6 +4 oct | 345 |
70 | 5755.619 | 28/1 | ^^M6 +4 oct, vvm7 +4 oct | 350 |
71 | 5837.842 | 29/1 | ^^^m7 +4 oct | 355 |
72 | 5920.065 | 30/1, 31/1 | vM7 +4 oct | 360 |
73 | 6002.288 | 32/1 | P1 +5 oct | 365 |
Approximation to JI
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