Convert frequency to log scale, 0 = BASE_FREQUENCY (440hz + 3halftones), +1 == + half tone, +12 == + octave (880Hz), -12 == -octave (220hz)
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Convert frequency to log scale, 0 = BASE_FREQUENCY (440hz + 3halftones), +1 == + half tone, +12 == + octave (880Hz), -12 == -octave (220hz)