[TylerE]

> With a guitar, you can at least still try to correct it by putting your finger down somewhat closer or farther away.

Does not work like that. It isn't a violin.

It is possible to pull notes sharp slightly (but it's done with pressure, not finger placement), but if the note is already sharp, there's nothing you can do.

[delinka]

Move one fret flat and pull very sharp? (no, this is not practical, but the inexperienced should give it a try...)