Logarithmic phi

Logarithmic phi, or 1200*[math]\varphi[/math] cents = 1941.6 cents (or, octave-reduced, 741.6 cents) is useful as a generator, for example in Erv Wilson's "Golden Horagrams". As a frequency relation it is [math]2^{\varphi}[/math], or [math]2^{\varphi - 1} = 2^{1/\varphi}[/math] when octave-reduced.

Logarithmic phi is not to be confused with acoustic phi, which is 833.1¢.