[DaveySimps]

I would say just go with the lyrics if you are comfortable with that. But, do have a full copy of the score on hand during your tech or cuing sessions in case there is a need to have that for a certain section of the show to call cues. That way you can just insert that in order where needed. Just be as clear as possible, as that is the idea of a prompt book. If somehting were to happen to you and someone else needed to call the show, you do not want them to have to guess, or interpert your notes on the fly.

~Dave