David, you seem confused, I'm not comparing anything.
I'm saying "Imagine if . . ."
OK, I'll imagine.
How would a computer program recognize that something were a mistake? I mean, barring "magic", there's got to be some criteria, right?
And the criteria is going to be some sort of error function.
In the case of Auto-Tune, it's a measure of distance of a pitch from "good" pitches. The larger the error, the faster the correction speed in the direction of the "good" pitch.
Similarly, the criteria for evaluating a "good" performance is the distance from "good" pitches, and the distance from "good" beats.
As a rule, something generic is going to score higher than something that's "interesting".
That's me imagining how it would work, because... well, that's pretty much the way it
would work.