2ifdo
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| ← 1ifdo 2ifdo 3ifdo → | |
|---|---|
| Prime factors | 2 |
| Fifth | 4/2 (1200 cents) |
2ifdo (inverse-arithmetic division of the octave), or 2-UDO (utonal division of the octave), if the attempt is made to use it as an actual scale, would divide the octave into two inverse-arithmetically equal parts. The only non-trivial interval is the just perfect fourth 4/3, since 4/3 is inverse-arithmetically halfway between 1/1 and 2/1.
Intervals
| # | Cents | Ratio | Interval name | Audio |
|---|---|---|---|---|
| 0 | 0.00 | 1/1 | perfect unison | |
| 1 | 498.04 | 4/3 | just perfect fourth | |
| 2 | 1200.00 | 2/1 | perfect octave |