I agree that credit should be split evenly, Mike. Magic's hard to pin down.

As for tweaking lyrics while recording vocals... I believe that a lyricist's job continues through the recording phase. I don't mind a vocalist/co-writer changing lyrics to fit. But I reserve the right to rewrite the changed lyrics if I think I can produce something better. But I've found, more often than not, that a rewrite isn't necessary.

Later,
Stan


I'm a lyricist seeking music writers.

Check https://drooble.com/stanfield.major/wall for songs I've collaborated on.