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I would like to use the Free EG to make the fine tuning of each 
oscillator drift independantly.  Does anyone know what a graph of 
real oscillator drift would typically look like? (I'm sure it varies 
from VCO to VCO.) Is it pretty much sinusoidal with just a few 
eccentricities or is it more "squiggly"/random than that? (I'm 
guessing that I should use a full 12 or 18 second free EG length.)