[Lucifer]

Make sure you use this in the beginning of the game if you want shuffled music playback from the zune's media library:

using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Media;
using Microsoft.Xna.Framework.Storage;

and then add this in the main code just below : Content.RootDirectory = "Content";

  MediaPlayer.IsShuffled = true;
            MediaPlayer.IsRepeating = true;
            MediaLibrary ml = new MediaLibrary();
            SongCollection s = ml.Songs;
            MediaPlayer.Play(s);
            MediaPlayer.Queue.MoveNext();
            MediaPlayer.IsVisualizationEnabled = true;