20afdo

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← 19afdo 20afdo 21afdo →
Prime factorization 22 × 5
Fifth 30/20 (701.955c)

20afdo (arithmetic frequency division of the octave), or 20odo (otonal division of the octave), divides the octave into 20 parts of 1/20 each. As a scale it may be known as mode 20 of the harmonic series or the Over-20 scale.