Just as the title says. About the only thing I have unchecked in the options is auto-turn. Because sometimes you know, despite all my guys having moved, all my cities building something or using their gildar or research boosts, I still want to do something, and auto-turn doesn't let me.
So yeah, the music from the main menu also seems to carry over when I'm loading a saved game, and can overlap with other music, in addition to the battle music thing.