Hi Phil,
Thats exactly the way I have It set, The music volume just up a hair/just enough to hear the game Invite which are like buses, no sign of any & then you get three at once! ;)
I only discovered that the music & Game Invite were linked when I switched to headphones on Paul's advice (pmm711) but the headphones are great for helping me concentrate & blot out the kids killing each other
Ken