One rough note in an otherwise useful sketch

[Sophiemult]

One sustained note in our current song sketch has an odd metallic tail. The rest of the phrase works for the melody, and my writing partner wants to keep its timing. Replacing the entire section feels excessive. We can try another generation of the same musical passage, but that might also replace the little pause that makes the line convincing. I am gathering suggestions about ai music artifact removal as one possible route, without assuming it can rescue this particular note. At this stage the goal is a workable composition demo. We are not facing a delivery deadline. Would you first shorten the note, replace that phrase, or test a conservative cleanup on a copy? Keeping the character of the vocal matters most. An imperfect note could still serve the sketch. Which signs would push you toward a fresh take?