These people might also be playing music of their own, with that said, adding a mute button would help to avoid clashing music.
Some people might have the game playing on one screen and this map on another. Here are a few things that would also be helpful for people reading the map. Once the finished version of the map has all of the update points, I'd say the game/map will be quite helpful to new players and veterans alike. I have no doubt the finished map will be of use to players, however as it stands the game is like you said yourself.an early beta.
