Recently a DIY PIC-based Quantizer for modular synths was posted on the electro-music Forum. Since I do not currently have one I decided to breadboard it up to test it out. The first few tries were not as successful as I hoped but persistence proved to be the right path. I went through the circuit and narrowed the errors down to a problem with the PIC not programming correctly. It works now and is tons of fun. The link above will take you to the discussion.