Here's an older video (from August2010) that explains how you can simply play your synth with a guitar by only using a Doepfer A-160 Clock Divider.
This seems to work great and outputs a nice square wave, and logically, this works best with single notes (great for solos after some good practicing)
After the A-160 module you can route the sound to anywhere you like... just plug and play!
" Ok Ok, this is crazy... This video shows you how to (without any 'special' modules whatsoever) play an analog mod synth with a regular ol guitar. I discovered a very common, but unusual module to convert the guitar signal into audio: the clock divider... insanity ensues...
© Philip Mease 2010"
Uploaded by PSMProjectVids