Just off hand, I'm kind of leaning to the follow MIDI method also. I have followed the chord change way, and I have been known to hit an off note. (like alot). So In foresight, (do we ever use that enough?) I may have better luck laying down a midi melody, based on how I want to sing it, and click the button to follow that. And, if I understand it all right, can also then use "pitch correction" on my vocals, if needed. Of course, I don't have a controller right now. I always need to rely on electronics to fix my inabilities. LOL.. Oh well, at least its fun, and thankfully, I don't perform live.