I don't care for TMV, not even a little.
I don't care what a band is singing about. I want the lyrics to tie into the music by the sound of the lyric. That is the sign of a musician. Most of the time, I can't understand what JW or RP are saying, and I don't care.
Meg is Jack's ex-wife, not his sister.
He took her last name in the marriage.
As far as her style, I think of Charlie Watts. Keep the rhythm without disturbing the music.