19afdo

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← 18afdo19afdo20afdo →
Prime factorization 19 (prime)
Dual sharp fifth 29/19 (732.064c)
Dual flat fifth 28/19 (671.312c)

19afdo (arithmetic frequency division of the octave), or 19odo (otonal division of the octave), divides the octave into 19 parts of 1/19 each. As a scale it may be known as mode 19 of the harmonic series or the Over-19 scale.