MOTM

At the recent NYC meeting, RevTor had a couple of the LED jacks (they 
light up when signal is present) that were discussed a few months ago on 
the list. Today, reading Keyboard magazine, I came across a review of the 
"Lovetone Ringstinger" effects pedal. One paragraph caught my eye:

"The unit ships with a "light plug", a 1/4" plug with a photoresistor in 
the plastic housing. By inserting the light plug into one of the 
Ringstinger's external pedal jacks and changing the amount of light 
hitting the photoresistor, you can sweep either the LFO depth or VCO 
frequency."

Seems like something similar might be a simple, interesting controller 
for MOTM, or any other CV synth. Would this work?

nathan