# 2afdo

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**2afdo** (arithmetic frequency division of the octave), or **2odo** (otonal division of the octave), if the attempt is made to use it as an actual scale, would divide the octave into two arithmetically equal parts, and may also be known as mode 2 of the harmonic series or the Over-2 scale. The only non-trivial interval is the just perfect fifth 3/2, since 3/2 is arithmetically halfway between 1/1 and 2/1.

## Intervals

# | Cents | Ratio | Decimal | Interval name | Audio |
---|---|---|---|---|---|

0 | 0.0 | 1/1 | 1.0000 | perfect unison | |

1 | 702.0 | 3/2 | 1.5000 | just perfect fifth | |

2 | 1200.0 | 2/1 | 2.0000 | perfect octave |