21 EDO
Keyboard
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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Note details
| Note | Frequency (Hz) | Interval (cents) |
|---|---|---|
| 1 | 440.00 | 0.00 |
| 2 | 454.77 | 57.14 |
| 3 | 470.03 | 114.29 |
| 4 | 485.80 | 171.43 |
| 5 | 502.10 | 228.57 |
| 6 | 518.95 | 285.71 |
| 7 | 536.37 | 342.86 |
| 8 | 554.37 | 400.00 |
| 9 | 572.97 | 457.14 |
| 10 | 592.20 | 514.29 |
| 11 | 612.07 | 571.43 |
| 12 | 632.61 | 628.57 |
| 13 | 653.84 | 685.71 |
| 14 | 675.78 | 742.86 |
| 15 | 698.46 | 800.00 |
| 16 | 721.90 | 857.14 |
| 17 | 746.12 | 914.29 |
| 18 | 771.16 | 971.43 |
| 19 | 797.04 | 1028.57 |
| 20 | 823.78 | 1085.71 |
| 21 | 851.43 | 1142.86 |
| 22 | 880.00 | 1200.00 |
Comparison to just intonation
| Note | Interval | Diff (cents) |
|---|---|---|
| 1 | Unison | 0.00 |
| 2 | ||
| 3 | Minor second | 2.55 |
| 4 | ||
| 5 | Major second | 24.66 |
| 6 | ||
| 7 | Minor third | 27.22 |
| 8 | Major Third | 13.69 |
| 9 | ||
| 10 | Perfect fourth | 16.24 |
| 11 | Tritone | -18.80 |
| 12 | ||
| 13 | Perfect fifth | -16.24 |
| 14 | ||
| 15 | Minor sixth | -13.69 |
| 16 | Major sixth | -27.22 |
| 17 | ||
| 18 | ||
| 19 | Minor seventh | 10.98 |
| 20 | Major seventh | -2.55 |
| 21 | ||
| 22 | Perfect octave | 0.00 |
Comparison to 12 EDO
| Note | Interval | Diff (cents) |
|---|---|---|
| 1 | Unison | 0.00 |
| 2 | ||
| 3 | Minor second | 14.29 |
| 4 | ||
| 5 | Major second | 28.57 |
| 6 | ||
| 7 | Minor third | 42.86 |
| 8 | Major Third | 0.00 |
| 9 | ||
| 10 | Perfect fourth | 14.29 |
| 11 | Tritone | -28.57 |
| 12 | ||
| 13 | Perfect fifth | -14.29 |
| 14 | ||
| 15 | Minor sixth | 0.00 |
| 16 | Major sixth | -42.86 |
| 17 | ||
| 18 | ||
| 19 | Minor seventh | 28.57 |
| 20 | Major seventh | -14.29 |
| 21 | ||
| 22 | Perfect octave | 0.00 |