The Main menu music doesn't start until you are actually on the main menu. In AIWC, the music starts after a set time or when the game loads, whichever comes first (I don't actually know). But usually when you first run the game, the Music starts during the loading period, which just bothers me for some reason. Though I will kinda miss racing the music, which means I root for the game to load to the main menu before the music can start.