What it means is that Freedman writes some freakyass harmonies for Tate to sing over! But it don't bother Grady none.
Just sayin' - if you ear hears things in terms of "weird chords" then this album is full of 'em. But if your ears aren't bothered/affected by those things, then, no biggie.
Also, it's a total "concert" vibe here, not songs with a beat, or anything like.
I love it myself, think it's audaciously grandly beautiful, but I've had people leave the room cussing about it too, so...spend the money if you've got it to spare, I'll put it that way.