105edo: Difference between revisions
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== Intervals == | == Intervals == | ||
{{Main|Table of 105edo intervals}} | {{Main|Table of 105edo intervals}} | ||
{{Interval table}} | |||
=== 15-odd-limit interval mappings === | === 15-odd-limit interval mappings === | ||
{{15-odd-limit|105}} | {{15-odd-limit|105}} | ||
Revision as of 02:10, 28 February 2024
| ← 104edo | 105edo | 106edo → |
Theory
105edo is most notable as a tuning of meantone and in particular higher-limit extensions of meantone, such as grosstone and Huygens. It tempers out 81/80 in the 5-limit; 81/80, 126/125 and hence 225/224 in the 7-limit; 99/98, 176/175 and 441/440 in the 11-limit; and if we want to push that far, 144/143 in the 13-limit. This is the sharper fifth mapping of 11-limit meantone (aka huygens rather than meanpop), for which it gives the optimal patent val, and provides a good tuning for the 13-limit extension, though 74edo is in that case the optimal patent val. 105edo's meantone fifth is nearly identical to the CTE generator for meantone.
Odd harmonics
| Harmonic | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -4.81 | +2.26 | +2.60 | +1.80 | -2.75 | +5.19 | -2.55 | -2.10 | -0.37 | -2.21 | +0.30 |
| Relative (%) | -42.1 | +19.8 | +22.8 | +15.8 | -24.0 | +45.4 | -22.4 | -18.4 | -3.2 | -19.3 | +2.6 | |
| Steps (reduced) |
166 (61) |
244 (34) |
295 (85) |
333 (18) |
363 (48) |
389 (74) |
410 (95) |
429 (9) |
446 (26) |
461 (41) |
475 (55) | |
Subsets and supersets
105 is the product of 3 × 5 × 7, the three smallest odd primes, with other divisors being 15, 21 and 35.
Intervals
| Steps | Cents | Approximate ratios | Ups and downs notation (Dual flat fifth 61\105) |
Ups and downs notation (Dual sharp fifth 62\105) |
|---|---|---|---|---|
| 0 | 0 | 1/1 | D | D |
| 1 | 11.4 | ^D, vvE♭♭ | ^D, v4E♭ | |
| 2 | 22.9 | ^^D, vE♭♭ | ^^D, v3E♭ | |
| 3 | 34.3 | ^3D, E♭♭ | ^3D, vvE♭ | |
| 4 | 45.7 | 38/37, 39/38, 40/39 | v3D♯, ^E♭♭ | ^4D, vE♭ |
| 5 | 57.1 | 30/29, 31/30, 32/31 | vvD♯, ^^E♭♭ | ^5D, E♭ |
| 6 | 68.6 | 26/25 | vD♯, ^3E♭♭ | ^6D, ^E♭ |
| 7 | 80 | 22/21 | D♯, v3E♭ | ^7D, ^^E♭ |
| 8 | 91.4 | 39/37 | ^D♯, vvE♭ | v6D♯, ^3E♭ |
| 9 | 102.9 | 17/16 | ^^D♯, vE♭ | v5D♯, ^4E♭ |
| 10 | 114.3 | 31/29 | ^3D♯, E♭ | v4D♯, ^5E♭ |
| 11 | 125.7 | 43/40 | v3D𝄪, ^E♭ | v3D♯, ^6E♭ |
| 12 | 137.1 | 40/37 | vvD𝄪, ^^E♭ | vvD♯, v7E |
| 13 | 148.6 | 12/11, 37/34 | vD𝄪, ^3E♭ | vD♯, v6E |
| 14 | 160 | 34/31 | D𝄪, v3E | D♯, v5E |
| 15 | 171.4 | 21/19, 32/29 | ^D𝄪, vvE | ^D♯, v4E |
| 16 | 182.9 | ^^D𝄪, vE | ^^D♯, v3E | |
| 17 | 194.3 | 19/17, 28/25 | E | ^3D♯, vvE |
| 18 | 205.7 | ^E, vvF♭ | ^4D♯, vE | |
| 19 | 217.1 | 17/15, 42/37 | ^^E, vF♭ | E |
| 20 | 228.6 | ^3E, F♭ | ^E, v4F | |
| 21 | 240 | 23/20 | v3E♯, ^F♭ | ^^E, v3F |
| 22 | 251.4 | 37/32 | vvE♯, ^^F♭ | ^3E, vvF |
| 23 | 262.9 | vE♯, ^3F♭ | ^4E, vF | |
| 24 | 274.3 | 34/29, 41/35 | E♯, v3F | F |
| 25 | 285.7 | 46/39 | ^E♯, vvF | ^F, v4G♭ |
| 26 | 297.1 | 19/16 | ^^E♯, vF | ^^F, v3G♭ |
| 27 | 308.6 | 37/31 | F | ^3F, vvG♭ |
| 28 | 320 | ^F, vvG♭♭ | ^4F, vG♭ | |
| 29 | 331.4 | 23/19 | ^^F, vG♭♭ | ^5F, G♭ |
| 30 | 342.9 | 28/23, 39/32 | ^3F, G♭♭ | ^6F, ^G♭ |
| 31 | 354.3 | 38/31, 43/35 | v3F♯, ^G♭♭ | ^7F, ^^G♭ |
| 32 | 365.7 | 21/17 | vvF♯, ^^G♭♭ | v6F♯, ^3G♭ |
| 33 | 377.1 | 46/37 | vF♯, ^3G♭♭ | v5F♯, ^4G♭ |
| 34 | 388.6 | 5/4 | F♯, v3G♭ | v4F♯, ^5G♭ |
| 35 | 400 | 29/23 | ^F♯, vvG♭ | v3F♯, ^6G♭ |
| 36 | 411.4 | 19/15 | ^^F♯, vG♭ | vvF♯, v7G |
| 37 | 422.9 | 37/29 | ^3F♯, G♭ | vF♯, v6G |
| 38 | 434.3 | v3F𝄪, ^G♭ | F♯, v5G | |
| 39 | 445.7 | 22/17 | vvF𝄪, ^^G♭ | ^F♯, v4G |
| 40 | 457.1 | vF𝄪, ^3G♭ | ^^F♯, v3G | |
| 41 | 468.6 | 21/16, 38/29 | F𝄪, v3G | ^3F♯, vvG |
| 42 | 480 | 29/22 | ^F𝄪, vvG | ^4F♯, vG |
| 43 | 491.4 | ^^F𝄪, vG | G | |
| 44 | 502.9 | G | ^G, v4A♭ | |
| 45 | 514.3 | 35/26, 39/29 | ^G, vvA♭♭ | ^^G, v3A♭ |
| 46 | 525.7 | 42/31 | ^^G, vA♭♭ | ^3G, vvA♭ |
| 47 | 537.1 | 15/11 | ^3G, A♭♭ | ^4G, vA♭ |
| 48 | 548.6 | v3G♯, ^A♭♭ | ^5G, A♭ | |
| 49 | 560 | 29/21 | vvG♯, ^^A♭♭ | ^6G, ^A♭ |
| 50 | 571.4 | 32/23, 39/28 | vG♯, ^3A♭♭ | ^7G, ^^A♭ |
| 51 | 582.9 | 7/5 | G♯, v3A♭ | v6G♯, ^3A♭ |
| 52 | 594.3 | 31/22 | ^G♯, vvA♭ | v5G♯, ^4A♭ |
| 53 | 605.7 | 44/31 | ^^G♯, vA♭ | v4G♯, ^5A♭ |
| 54 | 617.1 | 10/7 | ^3G♯, A♭ | v3G♯, ^6A♭ |
| 55 | 628.6 | 23/16 | v3G𝄪, ^A♭ | vvG♯, v7A |
| 56 | 640 | 42/29 | vvG𝄪, ^^A♭ | vG♯, v6A |
| 57 | 651.4 | vG𝄪, ^3A♭ | G♯, v5A | |
| 58 | 662.9 | 22/15 | G𝄪, v3A | ^G♯, v4A |
| 59 | 674.3 | 31/21 | ^G𝄪, vvA | ^^G♯, v3A |
| 60 | 685.7 | ^^G𝄪, vA | ^3G♯, vvA | |
| 61 | 697.1 | A | ^4G♯, vA | |
| 62 | 708.6 | ^A, vvB♭♭ | A | |
| 63 | 720 | 44/29 | ^^A, vB♭♭ | ^A, v4B♭ |
| 64 | 731.4 | 29/19, 32/21 | ^3A, B♭♭ | ^^A, v3B♭ |
| 65 | 742.9 | 43/28 | v3A♯, ^B♭♭ | ^3A, vvB♭ |
| 66 | 754.3 | 17/11 | vvA♯, ^^B♭♭ | ^4A, vB♭ |
| 67 | 765.7 | vA♯, ^3B♭♭ | ^5A, B♭ | |
| 68 | 777.1 | A♯, v3B♭ | ^6A, ^B♭ | |
| 69 | 788.6 | 30/19, 41/26 | ^A♯, vvB♭ | ^7A, ^^B♭ |
| 70 | 800 | 46/29 | ^^A♯, vB♭ | v6A♯, ^3B♭ |
| 71 | 811.4 | 8/5 | ^3A♯, B♭ | v5A♯, ^4B♭ |
| 72 | 822.9 | 37/23 | v3A𝄪, ^B♭ | v4A♯, ^5B♭ |
| 73 | 834.3 | 34/21 | vvA𝄪, ^^B♭ | v3A♯, ^6B♭ |
| 74 | 845.7 | 31/19 | vA𝄪, ^3B♭ | vvA♯, v7B |
| 75 | 857.1 | 23/14, 41/25 | A𝄪, v3B | vA♯, v6B |
| 76 | 868.6 | 38/23 | ^A𝄪, vvB | A♯, v5B |
| 77 | 880 | ^^A𝄪, vB | ^A♯, v4B | |
| 78 | 891.4 | B | ^^A♯, v3B | |
| 79 | 902.9 | 32/19 | ^B, vvC♭ | ^3A♯, vvB |
| 80 | 914.3 | 39/23 | ^^B, vC♭ | ^4A♯, vB |
| 81 | 925.7 | 29/17 | ^3B, C♭ | B |
| 82 | 937.1 | 43/25 | v3B♯, ^C♭ | ^B, v4C |
| 83 | 948.6 | vvB♯, ^^C♭ | ^^B, v3C | |
| 84 | 960 | 40/23 | vB♯, ^3C♭ | ^3B, vvC |
| 85 | 971.4 | B♯, v3C | ^4B, vC | |
| 86 | 982.9 | 30/17, 37/21 | ^B♯, vvC | C |
| 87 | 994.3 | ^^B♯, vC | ^C, v4D♭ | |
| 88 | 1005.7 | 25/14, 34/19 | C | ^^C, v3D♭ |
| 89 | 1017.1 | ^C, vvD♭♭ | ^3C, vvD♭ | |
| 90 | 1028.6 | 29/16, 38/21 | ^^C, vD♭♭ | ^4C, vD♭ |
| 91 | 1040 | 31/17 | ^3C, D♭♭ | ^5C, D♭ |
| 92 | 1051.4 | 11/6 | v3C♯, ^D♭♭ | ^6C, ^D♭ |
| 93 | 1062.9 | 37/20 | vvC♯, ^^D♭♭ | ^7C, ^^D♭ |
| 94 | 1074.3 | vC♯, ^3D♭♭ | v6C♯, ^3D♭ | |
| 95 | 1085.7 | C♯, v3D♭ | v5C♯, ^4D♭ | |
| 96 | 1097.1 | 32/17 | ^C♯, vvD♭ | v4C♯, ^5D♭ |
| 97 | 1108.6 | ^^C♯, vD♭ | v3C♯, ^6D♭ | |
| 98 | 1120 | 21/11 | ^3C♯, D♭ | vvC♯, v7D |
| 99 | 1131.4 | 25/13 | v3C𝄪, ^D♭ | vC♯, v6D |
| 100 | 1142.9 | 29/15, 31/16 | vvC𝄪, ^^D♭ | C♯, v5D |
| 101 | 1154.3 | 37/19, 39/20 | vC𝄪, ^3D♭ | ^C♯, v4D |
| 102 | 1165.7 | C𝄪, v3D | ^^C♯, v3D | |
| 103 | 1177.1 | ^C𝄪, vvD | ^3C♯, vvD | |
| 104 | 1188.6 | ^^C𝄪, vD | ^4C♯, vD | |
| 105 | 1200 | 2/1 | D | D |
15-odd-limit interval mappings
The following tables show how 15-odd-limit intervals are represented in 105edo. Prime harmonics are in bold; inconsistent intervals are in italics.
| Interval and complement | Error (abs, ¢) | Error (rel, %) |
|---|---|---|
| 1/1, 2/1 | 0.000 | 0.0 |
| 15/11, 22/15 | 0.192 | 1.7 |
| 7/5, 10/7 | 0.345 | 3.0 |
| 9/5, 10/9 | 0.453 | 4.0 |
| 9/7, 14/9 | 0.798 | 7.0 |
| 13/12, 24/13 | 1.430 | 12.5 |
| 9/8, 16/9 | 1.804 | 15.8 |
| 11/6, 12/11 | 2.066 | 18.1 |
| 5/4, 8/5 | 2.258 | 19.8 |
| 15/8, 16/15 | 2.554 | 22.4 |
| 13/7, 14/13 | 2.584 | 22.6 |
| 7/4, 8/7 | 2.603 | 22.8 |
| 11/8, 16/11 | 2.747 | 24.0 |
| 13/10, 20/13 | 2.929 | 25.6 |
| 13/9, 18/13 | 3.382 | 29.6 |
| 13/11, 22/13 | 3.495 | 30.6 |
| 15/13, 26/15 | 3.688 | 32.3 |
| 7/6, 12/7 | 4.014 | 35.1 |
| 5/3, 6/5 | 4.359 | 38.1 |
| 11/9, 18/11 | 4.551 | 39.8 |
| 3/2, 4/3 | 4.812 | 42.1 |
| 11/10, 20/11 | 5.004 | 43.8 |
| 15/14, 28/15 | 5.157 | 45.1 |
| 13/8, 16/13 | 5.187 | 45.4 |
| 11/7, 14/11 | 5.349 | 46.8 |
| Interval and complement | Error (abs, ¢) | Error (rel, %) |
|---|---|---|
| 1/1, 2/1 | 0.000 | 0.0 |
| 15/11, 22/15 | 0.192 | 1.7 |
| 7/5, 10/7 | 0.345 | 3.0 |
| 11/6, 12/11 | 2.066 | 18.1 |
| 5/4, 8/5 | 2.258 | 19.8 |
| 15/8, 16/15 | 2.554 | 22.4 |
| 13/7, 14/13 | 2.584 | 22.6 |
| 7/4, 8/7 | 2.603 | 22.8 |
| 11/8, 16/11 | 2.747 | 24.0 |
| 13/10, 20/13 | 2.929 | 25.6 |
| 3/2, 4/3 | 4.812 | 42.1 |
| 11/10, 20/11 | 5.004 | 43.8 |
| 15/14, 28/15 | 5.157 | 45.1 |
| 13/8, 16/13 | 5.187 | 45.4 |
| 11/7, 14/11 | 5.349 | 46.8 |
| 11/9, 18/11 | 6.878 | 60.2 |
| 5/3, 6/5 | 7.070 | 61.9 |
| 7/6, 12/7 | 7.415 | 64.9 |
| 15/13, 26/15 | 7.741 | 67.7 |
| 13/11, 22/13 | 7.933 | 69.4 |
| 9/8, 16/9 | 9.624 | 84.2 |
| 13/12, 24/13 | 9.999 | 87.5 |
| 9/5, 10/9 | 11.882 | 104.0 |
| 9/7, 14/9 | 12.227 | 107.0 |
| 13/9, 18/13 | 14.811 | 129.6 |