205edt
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205 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 205edt or 205ed3), is a nonoctave tuning system that divides the interval of 3/1 into 205 equal parts of about 9.28 ¢ each. Each step represents a frequency ratio of 31/205, or the 205th root of 3.
Intervals
Steps | Cents | Hekts | Approximate ratios |
---|---|---|---|
0 | 0 | 0 | 1/1 |
1 | 9.28 | 6.34 | |
2 | 18.56 | 12.68 | |
3 | 27.83 | 19.02 | 63/62 |
4 | 37.11 | 25.37 | 46/45, 47/46 |
5 | 46.39 | 31.71 | |
6 | 55.67 | 38.05 | |
7 | 64.94 | 44.39 | 27/26 |
8 | 74.22 | 50.73 | 47/45 |
9 | 83.5 | 57.07 | 43/41 |
10 | 92.78 | 63.41 | 19/18, 58/55 |
11 | 102.06 | 69.76 | 35/33, 52/49 |
12 | 111.33 | 76.1 | |
13 | 120.61 | 82.44 | |
14 | 129.89 | 88.78 | |
15 | 139.17 | 95.12 | |
16 | 148.45 | 101.46 | 49/45 |
17 | 157.72 | 107.8 | 23/21 |
18 | 167 | 114.15 | |
19 | 176.28 | 120.49 | |
20 | 185.56 | 126.83 | 69/62 |
21 | 194.83 | 133.17 | 47/42 |
22 | 204.11 | 139.51 | |
23 | 213.39 | 145.85 | |
24 | 222.67 | 152.2 | 33/29 |
25 | 231.95 | 158.54 | |
26 | 241.22 | 164.88 | 54/47 |
27 | 250.5 | 171.22 | 52/45 |
28 | 259.78 | 177.56 | 43/37 |
29 | 269.06 | 183.9 | |
30 | 278.33 | 190.24 | 27/23 |
31 | 287.61 | 196.59 | |
32 | 296.89 | 202.93 | |
33 | 306.17 | 209.27 | 37/31, 68/57 |
34 | 315.45 | 215.61 | 6/5 |
35 | 324.72 | 221.95 | 35/29, 41/34 |
36 | 334 | 228.29 | 57/47 |
37 | 343.28 | 234.63 | |
38 | 352.56 | 240.98 | |
39 | 361.84 | 247.32 | |
40 | 371.11 | 253.66 | 57/46 |
41 | 380.39 | 260 | |
42 | 389.67 | 266.34 | |
43 | 398.95 | 272.68 | 34/27 |
44 | 408.22 | 279.02 | 19/15, 62/49 |
45 | 417.5 | 285.37 | 14/11 |
46 | 426.78 | 291.71 | |
47 | 436.06 | 298.05 | 9/7 |
48 | 445.34 | 304.39 | |
49 | 454.61 | 310.73 | |
50 | 463.89 | 317.07 | 17/13 |
51 | 473.17 | 323.41 | 46/35 |
52 | 482.45 | 329.76 | |
53 | 491.72 | 336.1 | |
54 | 501 | 342.44 | |
55 | 510.28 | 348.78 | 47/35 |
56 | 519.56 | 355.12 | |
57 | 528.84 | 361.46 | 19/14 |
58 | 538.11 | 367.8 | |
59 | 547.39 | 374.15 | |
60 | 556.67 | 380.49 | |
61 | 565.95 | 386.83 | 43/31 |
62 | 575.23 | 393.17 | 46/33 |
63 | 584.5 | 399.51 | |
64 | 593.78 | 405.85 | |
65 | 603.06 | 412.2 | |
66 | 612.34 | 418.54 | 47/33 |
67 | 621.61 | 424.88 | |
68 | 630.89 | 431.22 | 36/25 |
69 | 640.17 | 437.56 | 42/29, 55/38, 68/47 |
70 | 649.45 | 443.9 | |
71 | 658.73 | 450.24 | |
72 | 668 | 456.59 | |
73 | 677.28 | 462.93 | 34/23 |
74 | 686.56 | 469.27 | |
75 | 695.84 | 475.61 | |
76 | 705.12 | 481.95 | |
77 | 714.39 | 488.29 | 65/43, 68/45 |
78 | 723.67 | 494.63 | 41/27 |
79 | 732.95 | 500.98 | 29/19, 55/36 |
80 | 742.23 | 507.32 | |
81 | 751.5 | 513.66 | 54/35 |
82 | 760.78 | 520 | 45/29 |
83 | 770.06 | 526.34 | |
84 | 779.34 | 532.68 | |
85 | 788.62 | 539.02 | 41/26 |
86 | 797.89 | 545.37 | 46/29, 65/41 |
87 | 807.17 | 551.71 | |
88 | 816.45 | 558.05 | |
89 | 825.73 | 564.39 | 29/18 |
90 | 835 | 570.73 | 34/21, 47/29 |
91 | 844.28 | 577.07 | 57/35 |
92 | 853.56 | 583.41 | 18/11 |
93 | 862.84 | 589.76 | 51/31 |
94 | 872.12 | 596.1 | |
95 | 881.39 | 602.44 | |
96 | 890.67 | 608.78 | |
97 | 899.95 | 615.12 | |
98 | 909.23 | 621.46 | |
99 | 918.51 | 627.8 | |
100 | 927.78 | 634.15 | |
101 | 937.06 | 640.49 | |
102 | 946.34 | 646.83 | 19/11 |
103 | 955.62 | 653.17 | 33/19 |
104 | 964.89 | 659.51 | |
105 | 974.17 | 665.85 | |
106 | 983.45 | 672.2 | |
107 | 992.73 | 678.54 | |
108 | 1002.01 | 684.88 | |
109 | 1011.28 | 691.22 | 52/29 |
110 | 1020.56 | 697.56 | |
111 | 1029.84 | 703.9 | |
112 | 1039.12 | 710.24 | 31/17 |
113 | 1048.39 | 716.59 | 11/6 |
114 | 1057.67 | 722.93 | 35/19 |
115 | 1066.95 | 729.27 | 63/34 |
116 | 1076.23 | 735.61 | 54/29 |
117 | 1085.51 | 741.95 | |
118 | 1094.78 | 748.29 | |
119 | 1104.06 | 754.63 | |
120 | 1113.34 | 760.98 | |
121 | 1122.62 | 767.32 | 65/34 |
122 | 1131.9 | 773.66 | |
123 | 1141.17 | 780 | 29/15 |
124 | 1150.45 | 786.34 | 35/18, 68/35 |
125 | 1159.73 | 792.68 | |
126 | 1169.01 | 799.02 | 55/28, 57/29 |
127 | 1178.28 | 805.37 | |
128 | 1187.56 | 811.71 | |
129 | 1196.84 | 818.05 | |
130 | 1206.12 | 824.39 | |
131 | 1215.4 | 830.73 | |
132 | 1224.67 | 837.07 | 69/34 |
133 | 1233.95 | 843.41 | |
134 | 1243.23 | 849.76 | |
135 | 1252.51 | 856.1 | 68/33 |
136 | 1261.78 | 862.44 | 29/14 |
137 | 1271.06 | 868.78 | 25/12 |
138 | 1280.34 | 875.12 | |
139 | 1289.62 | 881.46 | |
140 | 1298.9 | 887.8 | |
141 | 1308.17 | 894.15 | |
142 | 1317.45 | 900.49 | |
143 | 1326.73 | 906.83 | |
144 | 1336.01 | 913.17 | |
145 | 1345.29 | 919.51 | |
146 | 1354.56 | 925.85 | |
147 | 1363.84 | 932.2 | |
148 | 1373.12 | 938.54 | 42/19 |
149 | 1382.4 | 944.88 | |
150 | 1391.67 | 951.22 | |
151 | 1400.95 | 957.56 | |
152 | 1410.23 | 963.9 | |
153 | 1419.51 | 970.24 | |
154 | 1428.79 | 976.59 | |
155 | 1438.06 | 982.93 | 39/17 |
156 | 1447.34 | 989.27 | |
157 | 1456.62 | 995.61 | 58/25 |
158 | 1465.9 | 1001.95 | 7/3 |
159 | 1475.17 | 1008.29 | 68/29 |
160 | 1484.45 | 1014.63 | 33/14 |
161 | 1493.73 | 1020.98 | 45/19 |
162 | 1503.01 | 1027.32 | |
163 | 1512.29 | 1033.66 | |
164 | 1521.56 | 1040 | 65/27 |
165 | 1530.84 | 1046.34 | 46/19 |
166 | 1540.12 | 1052.68 | |
167 | 1549.4 | 1059.02 | |
168 | 1558.68 | 1065.37 | |
169 | 1567.95 | 1071.71 | 47/19 |
170 | 1577.23 | 1078.05 | |
171 | 1586.51 | 1084.39 | 5/2 |
172 | 1595.79 | 1090.73 | |
173 | 1605.06 | 1097.07 | |
174 | 1614.34 | 1103.41 | |
175 | 1623.62 | 1109.76 | 23/9 |
176 | 1632.9 | 1116.1 | |
177 | 1642.18 | 1122.44 | |
178 | 1651.45 | 1128.78 | |
179 | 1660.73 | 1135.12 | 47/18 |
180 | 1670.01 | 1141.46 | |
181 | 1679.29 | 1147.8 | 29/11 |
182 | 1688.56 | 1154.15 | |
183 | 1697.84 | 1160.49 | |
184 | 1707.12 | 1166.83 | |
185 | 1716.4 | 1173.17 | 62/23 |
186 | 1725.68 | 1179.51 | |
187 | 1734.95 | 1185.85 | |
188 | 1744.23 | 1192.2 | 63/23 |
189 | 1753.51 | 1198.54 | |
190 | 1762.79 | 1204.88 | |
191 | 1772.07 | 1211.22 | |
192 | 1781.34 | 1217.56 | |
193 | 1790.62 | 1223.9 | |
194 | 1799.9 | 1230.24 | |
195 | 1809.18 | 1236.59 | 54/19 |
196 | 1818.45 | 1242.93 | |
197 | 1827.73 | 1249.27 | |
198 | 1837.01 | 1255.61 | 26/9 |
199 | 1846.29 | 1261.95 | |
200 | 1855.57 | 1268.29 | |
201 | 1864.84 | 1274.63 | |
202 | 1874.12 | 1280.98 | 62/21 |
203 | 1883.4 | 1287.32 | |
204 | 1892.68 | 1293.66 | |
205 | 1901.96 | 1300 | 3/1 |
Harmonics
Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | -3.16 | +0.00 | +2.96 | -2.96 | -3.16 | -0.97 | -0.20 | +0.00 | +3.15 | -4.13 | +2.96 |
Relative (%) | -34.1 | +0.0 | +31.9 | -32.0 | -34.1 | -10.5 | -2.2 | +0.0 | +34.0 | -44.5 | +31.9 | |
Steps (reduced) |
129 (129) |
205 (0) |
259 (54) |
300 (95) |
334 (129) |
363 (158) |
388 (183) |
410 (0) |
430 (20) |
447 (37) |
464 (54) |
Harmonic | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +3.55 | -4.13 | -2.96 | -3.36 | +3.02 | -3.16 | -3.98 | -0.01 | -0.97 | +1.99 | -0.74 |
Relative (%) | +38.3 | -44.6 | -32.0 | -36.2 | +32.5 | -34.1 | -42.9 | -0.1 | -10.5 | +21.4 | -8.0 | |
Steps (reduced) |
479 (69) |
492 (82) |
505 (95) |
517 (107) |
529 (119) |
539 (129) |
549 (139) |
559 (149) |
568 (158) |
577 (167) |
585 (175) |