I will add an ability to turn down the music or off, same with sound effects, in a future update for sure.
Thanks for letting me know the error about the mac version. I was testing it on Mac and haven't had that same issue. Did it give you any error codes at all? I'll see if I can add that fix in the Monday update I'm sending out. I won't be able to add the music/sound additions Monday, but will hopefully have the fullscreen issue fixed.