102edt: Difference between revisions
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== Intervals == | |||
{{Interval table}} | |||
== Harmonics == | |||
{{Harmonics in equal | |||
| steps = 102 | |||
| num = 3 | |||
| denom = 1 | |||
}} | |||
{{Harmonics in equal | |||
| steps = 102 | |||
| num = 3 | |||
| denom = 1 | |||
| start = 12 | |||
| collapsed = 1 | |||
}} | |||
Latest revision as of 08:32, 5 October 2024
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| ← 101edt | 102edt | 103edt → |
102 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 102edt or 102ed3), is a nonoctave tuning system that divides the interval of 3/1 into 102 equal parts of about 18.6 ¢ each. Each step represents a frequency ratio of 31/102, or the 102nd root of 3.
Intervals
| Steps | Cents | Hekts | Approximate ratios |
|---|---|---|---|
| 0 | 0 | 0 | 1/1 |
| 1 | 18.6 | 12.7 | |
| 2 | 37.3 | 25.5 | 45/44 |
| 3 | 55.9 | 38.2 | |
| 4 | 74.6 | 51 | 23/22 |
| 5 | 93.2 | 63.7 | 19/18, 39/37 |
| 6 | 111.9 | 76.5 | |
| 7 | 130.5 | 89.2 | 14/13 |
| 8 | 149.2 | 102 | |
| 9 | 167.8 | 114.7 | 43/39 |
| 10 | 186.5 | 127.5 | 39/35 |
| 11 | 205.1 | 140.2 | |
| 12 | 223.8 | 152.9 | 33/29 |
| 13 | 242.4 | 165.7 | |
| 14 | 261.1 | 178.4 | 43/37 |
| 15 | 279.7 | 191.2 | 27/23 |
| 16 | 298.3 | 203.9 | 44/37 |
| 17 | 317 | 216.7 | 6/5 |
| 18 | 335.6 | 229.4 | 17/14 |
| 19 | 354.3 | 242.2 | 27/22, 43/35 |
| 20 | 372.9 | 254.9 | |
| 21 | 391.6 | 267.6 | |
| 22 | 410.2 | 280.4 | 19/15 |
| 23 | 428.9 | 293.1 | |
| 24 | 447.5 | 305.9 | 22/17, 35/27 |
| 25 | 466.2 | 318.6 | 17/13 |
| 26 | 484.8 | 331.4 | 37/28, 41/31, 45/34 |
| 27 | 503.5 | 344.1 | |
| 28 | 522.1 | 356.9 | 23/17 |
| 29 | 540.8 | 369.6 | 26/19 |
| 30 | 559.4 | 382.4 | 29/21 |
| 31 | 578 | 395.1 | |
| 32 | 596.7 | 407.8 | |
| 33 | 615.3 | 420.6 | |
| 34 | 634 | 433.3 | |
| 35 | 652.6 | 446.1 | |
| 36 | 671.3 | 458.8 | 28/19 |
| 37 | 689.9 | 471.6 | |
| 38 | 708.6 | 484.3 | |
| 39 | 727.2 | 497.1 | 35/23, 38/25 |
| 40 | 745.9 | 509.8 | |
| 41 | 764.5 | 522.5 | 14/9 |
| 42 | 783.2 | 535.3 | 11/7 |
| 43 | 801.8 | 548 | 27/17, 35/22 |
| 44 | 820.5 | 560.8 | 45/28 |
| 45 | 839.1 | 573.5 | |
| 46 | 857.7 | 586.3 | 23/14 |
| 47 | 876.4 | 599 | |
| 48 | 895 | 611.8 | |
| 49 | 913.7 | 624.5 | 39/23 |
| 50 | 932.3 | 637.3 | |
| 51 | 951 | 650 | 26/15, 45/26 |
| 52 | 969.6 | 662.7 | |
| 53 | 988.3 | 675.5 | 23/13 |
| 54 | 1006.9 | 688.2 | 34/19 |
| 55 | 1025.6 | 701 | |
| 56 | 1044.2 | 713.7 | 42/23 |
| 57 | 1062.9 | 726.5 | |
| 58 | 1081.5 | 739.2 | 28/15, 43/23 |
| 59 | 1100.2 | 752 | 17/9 |
| 60 | 1118.8 | 764.7 | 21/11 |
| 61 | 1137.4 | 777.5 | 27/14 |
| 62 | 1156.1 | 790.2 | 37/19, 41/21 |
| 63 | 1174.7 | 802.9 | |
| 64 | 1193.4 | 815.7 | |
| 65 | 1212 | 828.4 | |
| 66 | 1230.7 | 841.2 | |
| 67 | 1249.3 | 853.9 | 35/17, 37/18 |
| 68 | 1268 | 866.7 | |
| 69 | 1286.6 | 879.4 | |
| 70 | 1305.3 | 892.2 | |
| 71 | 1323.9 | 904.9 | |
| 72 | 1342.6 | 917.6 | |
| 73 | 1361.2 | 930.4 | |
| 74 | 1379.8 | 943.1 | |
| 75 | 1398.5 | 955.9 | |
| 76 | 1417.1 | 968.6 | 34/15 |
| 77 | 1435.8 | 981.4 | 39/17 |
| 78 | 1454.4 | 994.1 | 44/19 |
| 79 | 1473.1 | 1006.9 | |
| 80 | 1491.7 | 1019.6 | 45/19 |
| 81 | 1510.4 | 1032.4 | |
| 82 | 1529 | 1045.1 | |
| 83 | 1547.7 | 1057.8 | 22/9 |
| 84 | 1566.3 | 1070.6 | 42/17 |
| 85 | 1585 | 1083.3 | 5/2 |
| 86 | 1603.6 | 1096.1 | |
| 87 | 1622.3 | 1108.8 | 23/9 |
| 88 | 1640.9 | 1121.6 | |
| 89 | 1659.5 | 1134.3 | |
| 90 | 1678.2 | 1147.1 | 29/11 |
| 91 | 1696.8 | 1159.8 | |
| 92 | 1715.5 | 1172.5 | 35/13 |
| 93 | 1734.1 | 1185.3 | |
| 94 | 1752.8 | 1198 | |
| 95 | 1771.4 | 1210.8 | 39/14 |
| 96 | 1790.1 | 1223.5 | |
| 97 | 1808.7 | 1236.3 | 37/13 |
| 98 | 1827.4 | 1249 | |
| 99 | 1846 | 1261.8 | |
| 100 | 1864.7 | 1274.5 | 44/15 |
| 101 | 1883.3 | 1287.3 | |
| 102 | 1902 | 1300 | 3/1 |
Harmonics
| Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -6.62 | +0.00 | +5.41 | -7.97 | -6.62 | +6.21 | -1.20 | +0.00 | +4.06 | +6.88 | +5.41 |
| Relative (%) | -35.5 | +0.0 | +29.0 | -42.7 | -35.5 | +33.3 | -6.5 | +0.0 | +21.8 | +36.9 | +29.0 | |
| Steps (reduced) |
64 (64) |
102 (0) |
129 (27) |
149 (47) |
166 (64) |
181 (79) |
193 (91) |
204 (0) |
214 (10) |
223 (19) |
231 (27) | |
| Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -2.63 | -0.40 | -7.97 | -7.82 | -0.89 | -6.62 | -6.99 | -2.55 | +6.21 | +0.26 | -2.11 |
| Relative (%) | -14.1 | -2.2 | -42.7 | -41.9 | -4.8 | -35.5 | -37.5 | -13.7 | +33.3 | +1.4 | -11.3 | |
| Steps (reduced) |
238 (34) |
245 (41) |
251 (47) |
257 (53) |
263 (59) |
268 (64) |
273 (69) |
278 (74) |
283 (79) |
287 (83) |
291 (87) | |