MediaLibrary provides the following properties that return media collections: Albums, Artists, Genres, Pictures, Playlists, and Songs. Each property returns a collection object that can be enumerated and indexed. The collection object represents all media of that type in the device's media library.

The media collections do not retrieve or instantiate all media objects immediately. Instead, when needed, you can use the collections later to retrieve individual media objects, such as Song and Artist objects.

On Windows, MediaLibrary cannot find any songs unless the Windows Media Player previously found songs on the system. That means that Windows Media Player must first search the system for music before any songs can be accessed through MediaLibrary.

The following sample fragment demonstrates how to use MediaLibrary to retrieve and play a song.

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace ZuneSimpleSongPlay
{
    static class Program
    {
        static void Main(string[] args)
        {
            MediaLibrary library = new MediaLibrary();
            SongCollection songs = library.Songs;
            Song song = songs[0];
            MediaPlayer.Play(song);

            while (!GamePad.GetState(PlayerIndex.One).IsButtonDown(Buttons.Back))
            {
                ;
            }
        }
    }
}

Note
You may get an exception when you try to play DRM protected music.

Tasks

Reference