28:36:42:63 is a septimal add-9 chord.
Edo approximations for 28:36:42:63 ▶
intervals: 9/7, 3/2, 9/4 · ≤ 60edo, RMS rel. error ≤ 15%
| |
Edo |
Steps |
Cents (¢) |
Absolute errors (¢) |
RMS (¢) |
RMS (%)
|
| ▶ |
10 |
0 4 6 12 |
0.00 480.00 720.00 1440.00 |
0.00 +44.92 +18.04 +36.09 |
17.27 |
14.39
|
| ▶ |
12 |
0 4 7 14 |
0.00 400.00 700.00 1400.00 |
0.00 -35.08 -1.96 -3.91 |
14.41 |
14.41
|
| ▶ |
14 |
0 5 8 16 |
0.00 428.57 685.71 1371.43 |
0.00 -6.51 -16.24 -32.48 |
12.23 |
14.27
|
| ▶ |
17 |
0 6 10 20 |
0.00 423.53 705.88 1411.76 |
0.00 -11.55 +3.93 +7.85 |
7.26 |
10.28
|
| ▶ |
19 |
0 7 11 22 |
0.00 442.11 694.74 1389.47 |
0.00 +7.02 -7.22 -14.44 |
8.00 |
12.67
|
| ▶ |
22 |
0 8 13 26 |
0.00 436.36 709.09 1418.18 |
0.00 +1.28 +7.14 +14.27 |
5.65 |
10.35
|
| ▶ |
24 |
0 9 14 28 |
0.00 450.00 700.00 1400.00 |
0.00 +14.92 -1.96 -3.91 |
7.43 |
14.87
|
| ▶ |
27 |
0 10 16 32 |
0.00 444.44 711.11 1422.22 |
0.00 +9.36 +9.16 +18.31 |
6.47 |
14.57
|
| ▶ |
31 |
0 11 18 36 |
0.00 425.81 696.77 1393.55 |
0.00 -9.28 -5.18 -10.36 |
4.07 |
10.51
|
| ▶ |
36 |
0 13 21 42 |
0.00 433.33 700.00 1400.00 |
0.00 -1.75 -1.96 -3.91 |
1.39 |
4.16
|
| ▶ |
41 |
0 15 24 48 |
0.00 439.02 702.44 1404.88 |
0.00 +3.94 +0.48 +0.97 |
1.54 |
5.25
|
| ▶ |
46 |
0 17 27 54 |
0.00 443.48 704.35 1408.70 |
0.00 +8.39 +2.39 +4.79 |
3.10 |
11.89
|
| ▶ |
53 |
0 19 31 62 |
0.00 430.19 701.89 1403.77 |
0.00 -4.90 -0.07 -0.14 |
2.09 |
9.23
|
| ▶ |
58 |
0 21 34 68 |
0.00 434.48 703.45 1406.90 |
0.00 -0.60 +1.49 +2.99 |
1.39 |
6.73
|
See also
