create a 'frame' at the top thats not got any content other than the mp3, and then just make all links open in the main frame, leaving the top (or side) frame there with the mp3 playing...
Life is a tool, use it wisely and properly. Don't break it, because you can't exchange it if you do.
Life is an instrument, it needs regular cleaning, maintenance and tuning to keep it at its best.
Fear, is not knowing. Terror, is finding out.