68edt: Difference between revisions

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Lookalikes: [[43edo]], [[100ed5]], [[111ed6]], [[25edf]]
Lookalikes: [[43edo]], [[100ed5]], [[111ed6]], [[25edf]]
== Intervals ==
{{Interval table}}
==Harmonics==
{{Harmonics in equal
| steps = 68
| num = 3
| denom = 1
| intervals = integer
}}
{{Harmonics in equal
| steps = 68
| num = 3
| denom = 1
| start = 12
| collapsed = 1
| intervals = integer
}}


[[Category:Edt]]
[[Category:Edt]]
[[Category:Edonoi]]
[[Category:Edonoi]]

Revision as of 07:28, 6 October 2024

← 67edt 68edt 69edt →
Prime factorization 22 × 17
Step size 27.9699 ¢ 
Octave 43\68edt (1202.71 ¢)
Consistency limit 6
Distinct consistency limit 6

Division of the third harmonic into 68 equal parts (68EDT) is related to 43 edo (meride tuning), but with the 3/1 rather than the 2/1 being just. The octave is about 2.7068 cents stretched and the step size is about 27.9699 cents. Unlike 43edo, it is only consistent up to the 6-integer-limit, with discrepancy for the 7th harmonic.

Lookalikes: 43edo, 100ed5, 111ed6, 25edf

Intervals

Steps Cents Hekts Approximate ratios
0 0 0 1/1
1 28 19.1
2 55.9 38.2 31/30, 32/31
3 83.9 57.4 22/21
4 111.9 76.5 16/15
5 139.8 95.6 13/12
6 167.8 114.7
7 195.8 133.8 19/17
8 223.8 152.9 33/29
9 251.7 172.1 22/19, 37/32
10 279.7 191.2 27/23
11 307.7 210.3 31/26, 37/31
12 335.6 229.4 17/14
13 363.6 248.5 21/17, 37/30
14 391.6 267.6
15 419.5 286.8 14/11
16 447.5 305.9 22/17, 35/27
17 475.5 325 29/22
18 503.5 344.1
19 531.4 363.2 19/14
20 559.4 382.4 29/21
21 587.4 401.5
22 615.3 420.6
23 643.3 439.7
24 671.3 458.8 28/19
25 699.2 477.9 3/2
26 727.2 497.1 35/23
27 755.2 516.2 17/11, 31/20
28 783.2 535.3 11/7
29 811.1 554.4 8/5
30 839.1 573.5 13/8
31 867.1 592.6 28/17
32 895 611.8
33 923 630.9 29/17
34 951 650 26/15
35 978.9 669.1
36 1006.9 688.2 34/19
37 1034.9 707.4
38 1062.9 726.5 24/13, 37/20
39 1090.8 745.6 15/8
40 1118.8 764.7 21/11
41 1146.8 783.8 31/16, 33/17
42 1174.7 802.9
43 1202.7 822.1 2/1
44 1230.7 841.2
45 1258.6 860.3 29/14, 31/15
46 1286.6 879.4
47 1314.6 898.5 32/15
48 1342.6 917.6
49 1370.5 936.8
50 1398.5 955.9
51 1426.5 975
52 1454.4 994.1 37/16
53 1482.4 1013.2 33/14
54 1510.4 1032.4
55 1538.3 1051.5 17/7
56 1566.3 1070.6 37/15
57 1594.3 1089.7
58 1622.3 1108.8 23/9
59 1650.2 1127.9
60 1678.2 1147.1 29/11
61 1706.2 1166.2
62 1734.1 1185.3
63 1762.1 1204.4 36/13
64 1790.1 1223.5
65 1818 1242.6
66 1846 1261.8
67 1874 1280.9
68 1902 1300 3/1

Harmonics

Approximation of harmonics in 68edt
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +2.7 +0.0 +5.4 +10.7 +2.7 -12.4 +8.1 +0.0 +13.4 -11.8 +5.4
Relative (%) +9.7 +0.0 +19.4 +38.2 +9.7 -44.5 +29.0 +0.0 +47.9 -42.1 +19.4
Steps
(reduced)
43
(43)
68
(0)
86
(18)
100
(32)
111
(43)
120
(52)
129
(61)
136
(0)
143
(7)
148
(12)
154
(18)
Approximation of harmonics in 68edt
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +6.7 -9.7 +10.7 +10.8 -10.2 +2.7 -7.0 -11.9 -12.4 -9.1 -2.1
Relative (%) +23.9 -34.8 +38.2 +38.7 -36.5 +9.7 -25.0 -42.5 -44.5 -32.4 -7.5
Steps
(reduced)
159
(23)
163
(27)
168
(32)
172
(36)
175
(39)
179
(43)
182
(46)
185
(49)
188
(52)
191
(55)
194
(58)