235edt
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235 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 235edt or 235ed3), is a nonoctave tuning system that divides the interval of 3/1 into 235 equal parts of about 8.09 ¢ each. Each step represents a frequency ratio of 31/235, or the 235th root of 3.
Intervals
| Steps | Cents | Hekts | Approximate ratios |
|---|---|---|---|
| 0 | 0 | 0 | 1/1 |
| 1 | 8.09 | 5.53 | |
| 2 | 16.19 | 11.06 | |
| 3 | 24.28 | 16.6 | |
| 4 | 32.37 | 22.13 | 55/54 |
| 5 | 40.47 | 27.66 | |
| 6 | 48.56 | 33.19 | 36/35 |
| 7 | 56.65 | 38.72 | |
| 8 | 64.75 | 44.26 | 27/26 |
| 9 | 72.84 | 49.79 | |
| 10 | 80.93 | 55.32 | 22/21, 65/62 |
| 11 | 89.03 | 60.85 | |
| 12 | 97.12 | 66.38 | 55/52 |
| 13 | 105.21 | 71.91 | |
| 14 | 113.31 | 77.45 | |
| 15 | 121.4 | 82.98 | 44/41 |
| 16 | 129.49 | 88.51 | |
| 17 | 137.59 | 94.04 | |
| 18 | 145.68 | 99.57 | 37/34, 62/57 |
| 19 | 153.78 | 105.11 | 47/43 |
| 20 | 161.87 | 110.64 | 45/41 |
| 21 | 169.96 | 116.17 | 75/68 |
| 22 | 178.06 | 121.7 | 41/37, 51/46 |
| 23 | 186.15 | 127.23 | 49/44 |
| 24 | 194.24 | 132.77 | |
| 25 | 202.34 | 138.3 | |
| 26 | 210.43 | 143.83 | |
| 27 | 218.52 | 149.36 | 42/37 |
| 28 | 226.62 | 154.89 | 65/57 |
| 29 | 234.71 | 160.43 | 63/55 |
| 30 | 242.8 | 165.96 | |
| 31 | 250.9 | 171.49 | 52/45 |
| 32 | 258.99 | 177.02 | |
| 33 | 267.08 | 182.55 | 7/6 |
| 34 | 275.18 | 188.09 | 34/29 |
| 35 | 283.27 | 193.62 | |
| 36 | 291.36 | 199.15 | 58/49 |
| 37 | 299.46 | 204.68 | 44/37 |
| 38 | 307.55 | 210.21 | |
| 39 | 315.64 | 215.74 | 6/5 |
| 40 | 323.74 | 221.28 | 41/34, 47/39 |
| 41 | 331.83 | 226.81 | 63/52 |
| 42 | 339.92 | 232.34 | |
| 43 | 348.02 | 237.87 | 11/9 |
| 44 | 356.11 | 243.4 | |
| 45 | 364.2 | 248.94 | |
| 46 | 372.3 | 254.47 | |
| 47 | 380.39 | 260 | |
| 48 | 388.48 | 265.53 | |
| 49 | 396.58 | 271.06 | 39/31, 44/35 |
| 50 | 404.67 | 276.6 | |
| 51 | 412.76 | 282.13 | 33/26 |
| 52 | 420.86 | 287.66 | 37/29 |
| 53 | 428.95 | 293.19 | |
| 54 | 437.04 | 298.72 | |
| 55 | 445.14 | 304.26 | 75/58 |
| 56 | 453.23 | 309.79 | |
| 57 | 461.33 | 315.32 | |
| 58 | 469.42 | 320.85 | |
| 59 | 477.51 | 326.38 | 29/22, 54/41 |
| 60 | 485.61 | 331.91 | 45/34, 49/37 |
| 61 | 493.7 | 337.45 | |
| 62 | 501.79 | 342.98 | |
| 63 | 509.89 | 348.51 | 51/38 |
| 64 | 517.98 | 354.04 | |
| 65 | 526.07 | 359.57 | |
| 66 | 534.17 | 365.11 | 49/36 |
| 67 | 542.26 | 370.64 | 26/19 |
| 68 | 550.35 | 376.17 | |
| 69 | 558.45 | 381.7 | 29/21 |
| 70 | 566.54 | 387.23 | 43/31, 68/49 |
| 71 | 574.63 | 392.77 | 46/33 |
| 72 | 582.73 | 398.3 | 7/5 |
| 73 | 590.82 | 403.83 | 38/27 |
| 74 | 598.91 | 409.36 | 41/29, 65/46 |
| 75 | 607.01 | 414.89 | |
| 76 | 615.1 | 420.43 | 77/54 |
| 77 | 623.19 | 425.96 | |
| 78 | 631.29 | 431.49 | 36/25 |
| 79 | 639.38 | 437.02 | 55/38 |
| 80 | 647.47 | 442.55 | |
| 81 | 655.57 | 448.09 | |
| 82 | 663.66 | 453.62 | 22/15 |
| 83 | 671.75 | 459.15 | |
| 84 | 679.85 | 464.68 | 77/52 |
| 85 | 687.94 | 470.21 | |
| 86 | 696.03 | 475.74 | |
| 87 | 704.13 | 481.28 | |
| 88 | 712.22 | 486.81 | |
| 89 | 720.31 | 492.34 | 47/31 |
| 90 | 728.41 | 497.87 | |
| 91 | 736.5 | 503.4 | 75/49 |
| 92 | 744.6 | 508.94 | |
| 93 | 752.69 | 514.47 | |
| 94 | 760.78 | 520 | 45/29 |
| 95 | 768.88 | 525.53 | |
| 96 | 776.97 | 531.06 | |
| 97 | 785.06 | 536.6 | |
| 98 | 793.16 | 542.13 | |
| 99 | 801.25 | 547.66 | 27/17 |
| 100 | 809.34 | 553.19 | |
| 101 | 817.44 | 558.72 | |
| 102 | 825.53 | 564.26 | 29/18 |
| 103 | 833.62 | 569.79 | 34/21 |
| 104 | 841.72 | 575.32 | |
| 105 | 849.81 | 580.85 | 49/30 |
| 106 | 857.9 | 586.38 | |
| 107 | 866 | 591.91 | |
| 108 | 874.09 | 597.45 | 58/35 |
| 109 | 882.18 | 602.98 | |
| 110 | 890.28 | 608.51 | |
| 111 | 898.37 | 614.04 | 42/25 |
| 112 | 906.46 | 619.57 | 76/45 |
| 113 | 914.56 | 625.11 | 39/23 |
| 114 | 922.65 | 630.64 | 46/27, 75/44 |
| 115 | 930.74 | 636.17 | 77/45 |
| 116 | 938.84 | 641.7 | |
| 117 | 946.93 | 647.23 | 19/11 |
| 118 | 955.02 | 652.77 | 33/19 |
| 119 | 963.12 | 658.3 | |
| 120 | 971.21 | 663.83 | |
| 121 | 979.3 | 669.36 | 44/25 |
| 122 | 987.4 | 674.89 | 23/13 |
| 123 | 995.49 | 680.43 | |
| 124 | 1003.58 | 685.96 | 25/14 |
| 125 | 1011.68 | 691.49 | 52/29 |
| 126 | 1019.77 | 697.02 | |
| 127 | 1027.87 | 702.55 | |
| 128 | 1035.96 | 708.09 | |
| 129 | 1044.05 | 713.62 | |
| 130 | 1052.15 | 719.15 | |
| 131 | 1060.24 | 724.68 | |
| 132 | 1068.33 | 730.21 | 63/34, 76/41 |
| 133 | 1076.43 | 735.74 | 54/29 |
| 134 | 1084.52 | 741.28 | |
| 135 | 1092.61 | 746.81 | 62/33 |
| 136 | 1100.71 | 752.34 | 17/9 |
| 137 | 1108.8 | 757.87 | 55/29 |
| 138 | 1116.89 | 763.4 | |
| 139 | 1124.99 | 768.94 | |
| 140 | 1133.08 | 774.47 | |
| 141 | 1141.17 | 780 | 29/15 |
| 142 | 1149.27 | 785.53 | 68/35 |
| 143 | 1157.36 | 791.06 | |
| 144 | 1165.45 | 796.6 | 49/25 |
| 145 | 1173.55 | 802.13 | 65/33 |
| 146 | 1181.64 | 807.66 | |
| 147 | 1189.73 | 813.19 | |
| 148 | 1197.83 | 818.72 | |
| 149 | 1205.92 | 824.26 | |
| 150 | 1214.01 | 829.79 | |
| 151 | 1222.11 | 835.32 | 77/38 |
| 152 | 1230.2 | 840.85 | |
| 153 | 1238.29 | 846.38 | 45/22 |
| 154 | 1246.39 | 851.91 | 76/37 |
| 155 | 1254.48 | 857.45 | |
| 156 | 1262.57 | 862.98 | |
| 157 | 1270.67 | 868.51 | 25/12 |
| 158 | 1278.76 | 874.04 | |
| 159 | 1286.85 | 879.57 | |
| 160 | 1294.95 | 885.11 | |
| 161 | 1303.04 | 890.64 | |
| 162 | 1311.13 | 896.17 | |
| 163 | 1319.23 | 901.7 | 15/7 |
| 164 | 1327.32 | 907.23 | |
| 165 | 1335.42 | 912.77 | |
| 166 | 1343.51 | 918.3 | 63/29 |
| 167 | 1351.6 | 923.83 | |
| 168 | 1359.7 | 929.36 | 57/26 |
| 169 | 1367.79 | 934.89 | |
| 170 | 1375.88 | 940.43 | |
| 171 | 1383.98 | 945.96 | |
| 172 | 1392.07 | 951.49 | 38/17 |
| 173 | 1400.16 | 957.02 | |
| 174 | 1408.26 | 962.55 | |
| 175 | 1416.35 | 968.09 | 34/15 |
| 176 | 1424.44 | 973.62 | 41/18, 66/29 |
| 177 | 1432.54 | 979.15 | |
| 178 | 1440.63 | 984.68 | |
| 179 | 1448.72 | 990.21 | |
| 180 | 1456.82 | 995.74 | 58/25 |
| 181 | 1464.91 | 1001.28 | |
| 182 | 1473 | 1006.81 | |
| 183 | 1481.1 | 1012.34 | |
| 184 | 1489.19 | 1017.87 | 26/11 |
| 185 | 1497.28 | 1023.4 | |
| 186 | 1505.38 | 1028.94 | 31/13 |
| 187 | 1513.47 | 1034.47 | |
| 188 | 1521.56 | 1040 | 65/27 |
| 189 | 1529.66 | 1045.53 | |
| 190 | 1537.75 | 1051.06 | |
| 191 | 1545.84 | 1056.6 | |
| 192 | 1553.94 | 1062.13 | 27/11 |
| 193 | 1562.03 | 1067.66 | |
| 194 | 1570.12 | 1073.19 | 52/21 |
| 195 | 1578.22 | 1078.72 | |
| 196 | 1586.31 | 1084.26 | 5/2 |
| 197 | 1594.4 | 1089.79 | |
| 198 | 1602.5 | 1095.32 | |
| 199 | 1610.59 | 1100.85 | |
| 200 | 1618.69 | 1106.38 | |
| 201 | 1626.78 | 1111.91 | |
| 202 | 1634.87 | 1117.45 | 18/7 |
| 203 | 1642.97 | 1122.98 | |
| 204 | 1651.06 | 1128.51 | |
| 205 | 1659.15 | 1134.04 | |
| 206 | 1667.25 | 1139.57 | 55/21, 76/29 |
| 207 | 1675.34 | 1145.11 | |
| 208 | 1683.43 | 1150.64 | 37/14 |
| 209 | 1691.53 | 1156.17 | |
| 210 | 1699.62 | 1161.7 | |
| 211 | 1707.71 | 1167.23 | |
| 212 | 1715.81 | 1172.77 | |
| 213 | 1723.9 | 1178.3 | 46/17 |
| 214 | 1731.99 | 1183.83 | 68/25 |
| 215 | 1740.09 | 1189.36 | 41/15 |
| 216 | 1748.18 | 1194.89 | |
| 217 | 1756.27 | 1200.43 | |
| 218 | 1764.37 | 1205.96 | |
| 219 | 1772.46 | 1211.49 | |
| 220 | 1780.55 | 1217.02 | |
| 221 | 1788.65 | 1222.55 | |
| 222 | 1796.74 | 1228.09 | |
| 223 | 1804.83 | 1233.62 | |
| 224 | 1812.93 | 1239.15 | |
| 225 | 1821.02 | 1244.68 | 63/22 |
| 226 | 1829.11 | 1250.21 | |
| 227 | 1837.21 | 1255.74 | 26/9 |
| 228 | 1845.3 | 1261.28 | |
| 229 | 1853.39 | 1266.81 | 35/12 |
| 230 | 1861.49 | 1272.34 | |
| 231 | 1869.58 | 1277.87 | |
| 232 | 1877.67 | 1283.4 | |
| 233 | 1885.77 | 1288.94 | |
| 234 | 1893.86 | 1294.47 | |
| 235 | 1901.96 | 1300 | 3/1 |
Harmonics
| Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -2.17 | +0.00 | +3.75 | -2.18 | -2.17 | -1.96 | +1.57 | +0.00 | +3.75 | +0.61 | +3.75 |
| Relative (%) | -26.8 | +0.0 | +46.3 | -26.9 | -26.8 | -24.2 | +19.5 | +0.0 | +46.3 | +7.5 | +46.3 | |
| Steps (reduced) |
148 (148) |
235 (0) |
297 (62) |
344 (109) |
383 (148) |
416 (181) |
445 (210) |
470 (0) |
493 (23) |
513 (43) |
532 (62) | |
| Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +2.76 | +3.96 | -2.18 | -0.60 | -0.34 | -2.17 | +1.35 | +1.57 | -1.96 | -1.56 | +2.41 |
| Relative (%) | +34.1 | +48.9 | -26.9 | -7.4 | -4.2 | -26.8 | +16.6 | +19.4 | -24.2 | -19.3 | +29.8 | |
| Steps (reduced) |
549 (79) |
565 (95) |
579 (109) |
593 (123) |
606 (136) |
618 (148) |
630 (160) |
641 (171) |
651 (181) |
661 (191) |
671 (201) | |
Harmonics
| Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -2.17 | +0.00 | +3.75 | -2.18 | -2.17 | -1.96 | +1.57 | +0.00 | +3.75 | +0.61 | +3.75 |
| Relative (%) | -26.8 | +0.0 | +46.3 | -26.9 | -26.8 | -24.2 | +19.5 | +0.0 | +46.3 | +7.5 | +46.3 | |
| Steps (reduced) |
148 (148) |
235 (0) |
297 (62) |
344 (109) |
383 (148) |
416 (181) |
445 (210) |
470 (0) |
493 (23) |
513 (43) |
532 (62) | |
| Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +2.76 | +3.96 | -2.18 | -0.60 | -0.34 | -2.17 | +1.35 | +1.57 | -1.96 | -1.56 | +2.41 |
| Relative (%) | +34.1 | +48.9 | -26.9 | -7.4 | -4.2 | -26.8 | +16.6 | +19.4 | -24.2 | -19.3 | +29.8 | |
| Steps (reduced) |
549 (79) |
565 (95) |
579 (109) |
593 (123) |
606 (136) |
618 (148) |
630 (160) |
641 (171) |
651 (181) |
661 (191) |
671 (201) | |