I only wish I could find more than a tiny number of demos where it doesn't sound like a bad kazoo. And those are ones where it sounds like a GOOD kazoo!

This effect, IMO, sounds gimmicky at it's BEST, and distractingly terrible at it's average. Don't ask me what I think of it at it's worse!

We've got an Eventide Orville in the studio. And I don't even like that much! And it cost more than my whole G70 The day someone plays a demo that the harmonizer in an arranger can make you sound like more than one person actually singing (not vocoding one voice), I'll re-evaluate the feature. But with a total lack of any convincing examples (and I HAVE heard 'A Nightingale Sang'!) in the real world, I just have to pass on this one.

I'd rather PLAY a harmony on a sax sound, or something like that... At least there you can get contrapuntal and dissonant, if you want to.
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An arranger is just a tool. What matters is what you build with it..!