#Thank you, very much, MarioD, for your reply.

Sorry if I make dumb questions, but I'm very new to Melodyne.

Yes, I was aware that formant tool would be the right one to work on timbres.
I'll show as example of song that I'm trying to "transpose" key, preserving timbre.

First, I have the original panel:




So, I changed pitch from A to D#:





And moved formant back to A:






It show up too many artifacts, as you can see.
Is it normal?
Did I do the right procedures to achieve what I'm trying to do?