Audio => CV op amps?

[telstarmagikistferrari]

I want to be able to throw some weirdness into my Lunetta (if there's any room left) with a guitar/bass. Can anyone suggest an op amp or other IC(s) capable of boosting an audio signal into CV range? Also, RF, that range would be 5 volts on L 1.0, correct? Could one use the Ext Pwr and Sync ins for hi-level audio muckfuckery?

[RF]

Hi Mark -
This link is a scan of Polyphony - Dec 1978 - that has a Frequency to voltage converter schematic. I've built it, it doesn't track too well, but does output a voltage from an audio signal... (microphone, guitar, other module).

http://www.loscha.com/scans/Polyphony-1978-10.pdf

good luck

bruce