Ok, possibly it would be a "harmonizer" technically? I'm looking for a pretty specific sort of sound, something that sound relatively natural(as much as can be exspected) ,that can do minor 2nds and/or 7ths . Im looking for dischord and dis-harmony (for lack of a better term).Possibly with a clean and effected line out. I have tried the digitech ex-7 expression factory and boss ps-5 super shifter. If the shifted voice is distorted, It may also work. Any ideas? If you think either of the pedals should be able to do it I'm happy to try settings if you suggest some. But any ideas....?