18afdo
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18afdo (arithmetic frequency division of the octave), or 18odo (otonal division of the octave), divides the octave into 18 parts of 1/18 each. It is a superset of 17afdo and a subset of 19afdo. As a scale it may be known as mode 18 of the harmonic series or the Over-18 scale.
Intervals
| # | Cents | Ratio | Decimal | Color name | Audio |
|---|---|---|---|---|---|
| 0 | 0.00 | 1/1 | 1.0000 | wa 1sn, w1 | |
| 1 | 93.60 | 19/18 | 1.0556 | ino 2nd, 19o2 | |
| 2 | 182.40 | 10/9 | 1.1111 | yo 2nd, y2 | |
| 3 | 266.87 | 7/6 | 1.1667 | zo 3rd, z3 | |
| 4 | 347.41 | 11/9 | 1.2222 | ilo 3rd, 1o3 | |
| 5 | 424.36 | 23/18 | 1.2778 | twetho 4th, 23o4 | |
| 6 | 498.04 | 4/3 | 1.3333 | wa 4th, w4 | |
| 7 | 568.72 | 25/18 | 1.3889 | yoyo 4th, yy4 | |
| 8 | 636.62 | 13/9 | 1.4444 | tho 5th, 3o5 | |
| 9 | 701.96 | 3/2 | 1.5000 | wa 5th, w5 | |
| 10 | 764.92 | 14/9 | 1.5556 | zo 6th, z6 | |
| 11 | 825.67 | 29/18 | 1.6111 | tweno 6th, 29o6 | |
| 12 | 884.36 | 5/3 | 1.6667 | yo 6th, y6 | |
| 13 | 941.13 | 31/18 | 1.7222 | thiwo 6th, 31o6 | |
| 14 | 996.09 | 16/9 | 1.7778 | wa 7th, w7 | |
| 15 | 1049.36 | 11/6 | 1.8333 | ilo 7th, 1o7 | |
| 16 | 1101.05 | 17/9 | 1.8889 | iso 8ve, 17o8 | |
| 17 | 1151.23 | 35/18 | 1.9444 | zoyo 8ve, zy8 | |
| 18 | 1200.00 | 2/1 | 2.0000 | wa 8ve, w8 |