125edt
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125 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 125edt or 125ed3), is a nonoctave tuning system that divides the interval of 3/1 into 125 equal parts of about 15.2 ¢ each. Each step represents a frequency ratio of 31/125, or the 125th root of 3.
Intervals
| Steps | Cents | Hekts | Approximate ratios |
|---|---|---|---|
| 0 | 0 | 0 | 1/1 |
| 1 | 15.2 | 10.4 | |
| 2 | 30.4 | 20.8 | |
| 3 | 45.6 | 31.2 | 37/36, 38/37, 39/38, 40/39 |
| 4 | 60.9 | 41.6 | 29/28 |
| 5 | 76.1 | 52 | 23/22, 47/45 |
| 6 | 91.3 | 62.4 | 39/37 |
| 7 | 106.5 | 72.8 | 33/31, 50/47 |
| 8 | 121.7 | 83.2 | 44/41 |
| 9 | 136.9 | 93.6 | 13/12 |
| 10 | 152.2 | 104 | 12/11, 47/43 |
| 11 | 167.4 | 114.4 | 43/39 |
| 12 | 182.6 | 124.8 | 10/9 |
| 13 | 197.8 | 135.2 | 28/25, 37/33, 46/41 |
| 14 | 213 | 145.6 | 26/23, 43/38 |
| 15 | 228.2 | 156 | |
| 16 | 243.5 | 166.4 | 23/20, 38/33 |
| 17 | 258.7 | 176.8 | 29/25, 36/31, 43/37 |
| 18 | 273.9 | 187.2 | 34/29, 48/41 |
| 19 | 289.1 | 197.6 | 13/11 |
| 20 | 304.3 | 208 | 31/26 |
| 21 | 319.5 | 218.4 | |
| 22 | 334.7 | 228.8 | 17/14, 40/33 |
| 23 | 350 | 239.2 | |
| 24 | 365.2 | 249.6 | 21/17 |
| 25 | 380.4 | 260 | |
| 26 | 395.6 | 270.4 | 39/31 |
| 27 | 410.8 | 280.8 | 19/15 |
| 28 | 426 | 291.2 | 23/18 |
| 29 | 441.3 | 301.6 | 31/24, 40/31 |
| 30 | 456.5 | 312 | 43/33 |
| 31 | 471.7 | 322.4 | |
| 32 | 486.9 | 332.8 | 45/34 |
| 33 | 502.1 | 343.2 | |
| 34 | 517.3 | 353.6 | 31/23 |
| 35 | 532.5 | 364 | 34/25 |
| 36 | 547.8 | 374.4 | |
| 37 | 563 | 384.8 | 18/13 |
| 38 | 578.2 | 395.2 | |
| 39 | 593.4 | 405.6 | 31/22, 38/27 |
| 40 | 608.6 | 416 | 27/19 |
| 41 | 623.8 | 426.4 | 33/23, 43/30 |
| 42 | 639.1 | 436.8 | |
| 43 | 654.3 | 447.2 | |
| 44 | 669.5 | 457.6 | 25/17, 28/19 |
| 45 | 684.7 | 468 | 46/31 |
| 46 | 699.9 | 478.4 | |
| 47 | 715.1 | 488.8 | |
| 48 | 730.4 | 499.2 | 29/19 |
| 49 | 745.6 | 509.6 | 20/13 |
| 50 | 760.8 | 520 | 45/29 |
| 51 | 776 | 530.4 | 36/23, 47/30 |
| 52 | 791.2 | 540.8 | 30/19 |
| 53 | 806.4 | 551.2 | 43/27 |
| 54 | 821.6 | 561.6 | 37/23, 45/28 |
| 55 | 836.9 | 572 | 47/29 |
| 56 | 852.1 | 582.4 | 18/11 |
| 57 | 867.3 | 592.8 | 33/20 |
| 58 | 882.5 | 603.2 | 5/3 |
| 59 | 897.7 | 613.6 | 42/25, 47/28 |
| 60 | 912.9 | 624 | 39/23 |
| 61 | 928.2 | 634.4 | 41/24 |
| 62 | 943.4 | 644.8 | 50/29 |
| 63 | 958.6 | 655.2 | 40/23, 47/27 |
| 64 | 973.8 | 665.6 | |
| 65 | 989 | 676 | 23/13 |
| 66 | 1004.2 | 686.4 | 25/14 |
| 67 | 1019.4 | 696.8 | 9/5 |
| 68 | 1034.7 | 707.2 | 20/11 |
| 69 | 1049.9 | 717.6 | 11/6 |
| 70 | 1065.1 | 728 | 37/20, 50/27 |
| 71 | 1080.3 | 738.4 | 28/15 |
| 72 | 1095.5 | 748.8 | |
| 73 | 1110.7 | 759.2 | 19/10 |
| 74 | 1126 | 769.6 | 23/12 |
| 75 | 1141.2 | 780 | 29/15 |
| 76 | 1156.4 | 790.4 | 39/20 |
| 77 | 1171.6 | 800.8 | |
| 78 | 1186.8 | 811.2 | |
| 79 | 1202 | 821.6 | |
| 80 | 1217.3 | 832 | |
| 81 | 1232.5 | 842.4 | 51/25 |
| 82 | 1247.7 | 852.8 | 37/18 |
| 83 | 1262.9 | 863.2 | |
| 84 | 1278.1 | 873.6 | 23/11 |
| 85 | 1293.3 | 884 | 19/9 |
| 86 | 1308.5 | 894.4 | |
| 87 | 1323.8 | 904.8 | 43/20 |
| 88 | 1339 | 915.2 | 13/6 |
| 89 | 1354.2 | 925.6 | |
| 90 | 1369.4 | 936 | |
| 91 | 1384.6 | 946.4 | |
| 92 | 1399.8 | 956.8 | |
| 93 | 1415.1 | 967.2 | 34/15, 43/19 |
| 94 | 1430.3 | 977.6 | |
| 95 | 1445.5 | 988 | |
| 96 | 1460.7 | 998.4 | |
| 97 | 1475.9 | 1008.8 | |
| 98 | 1491.1 | 1019.2 | 45/19 |
| 99 | 1506.3 | 1029.6 | 31/13, 43/18 |
| 100 | 1521.6 | 1040 | |
| 101 | 1536.8 | 1050.4 | 17/7 |
| 102 | 1552 | 1060.8 | |
| 103 | 1567.2 | 1071.2 | 42/17, 47/19 |
| 104 | 1582.4 | 1081.6 | |
| 105 | 1597.6 | 1092 | |
| 106 | 1612.9 | 1102.4 | 33/13 |
| 107 | 1628.1 | 1112.8 | 41/16 |
| 108 | 1643.3 | 1123.2 | 31/12 |
| 109 | 1658.5 | 1133.6 | |
| 110 | 1673.7 | 1144 | 50/19 |
| 111 | 1688.9 | 1154.4 | |
| 112 | 1704.2 | 1164.8 | |
| 113 | 1719.4 | 1175.2 | 27/10 |
| 114 | 1734.6 | 1185.6 | |
| 115 | 1749.8 | 1196 | 11/4 |
| 116 | 1765 | 1206.4 | 36/13 |
| 117 | 1780.2 | 1216.8 | |
| 118 | 1795.4 | 1227.2 | 31/11 |
| 119 | 1810.7 | 1237.6 | 37/13 |
| 120 | 1825.9 | 1248 | |
| 121 | 1841.1 | 1258.4 | |
| 122 | 1856.3 | 1268.8 | 38/13 |
| 123 | 1871.5 | 1279.2 | |
| 124 | 1886.7 | 1289.6 | |
| 125 | 1902 | 1300 | 3/1 |
Harmonics
| Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +2.04 | +0.00 | +4.07 | -1.85 | +2.04 | -6.17 | +6.11 | +0.00 | +0.18 | +2.55 | +4.07 |
| Relative (%) | +13.4 | +0.0 | +26.8 | -12.2 | +13.4 | -40.5 | +40.1 | +0.0 | +1.2 | +16.8 | +26.8 | |
| Steps (reduced) |
79 (79) |
125 (0) |
158 (33) |
183 (58) |
204 (79) |
221 (96) |
237 (112) |
250 (0) |
262 (12) |
273 (23) |
283 (33) | |
| Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +2.44 | -4.13 | -1.85 | -7.07 | -5.52 | +2.04 | -0.27 | +2.22 | -6.17 | +4.59 | +3.71 |
| Relative (%) | +16.0 | -27.2 | -12.2 | -46.5 | -36.3 | +13.4 | -1.8 | +14.6 | -40.5 | +30.1 | +24.4 | |
| Steps (reduced) |
292 (42) |
300 (50) |
308 (58) |
315 (65) |
322 (72) |
329 (79) |
335 (85) |
341 (91) |
346 (96) |
352 (102) |
357 (107) | |