200e

why not invert the voltage at the 259 so that a lower voltage would 
both raise the pitch and decrese the decay time? not exactly what you 
wanted, but -

> How do I created an inverted version of a CV to feed to the 281e 
> decay? When I have a voltage raising the pitch of an oscillator, I'd 
> like an inverted version of that same voltage to decrease the decay 
> time of the envelope for that voice.  I realize I can do this by 
> creating mirrored interpolated sequences with the 249e, however, I 
> would like to do this with the CV out of the MOD Osc.