How to Play Music on Your Raspberry Pi

1. Click Music on the Home screen to get started playing music on your Raspberry Pi.  Use the panel on your left to browse your various music sources, and you can then find individual songs by working through the directory structure, or by browsing by album, artist, or genre.

2. As in Linux, the two dots represent a folder’s parent folder, which moves you up a level in the directory structure. You can see the two dots at the top of the panel on the left except when you’re already at the root.

3. When music is playing, click the Play button in the bottom left to open options to pause, rewind, fast forward, skip track, shuffle, or repeat.

4. You can continue to browse your music while it is playing, and queue songs or albums to play next by right-clicking them and choosing Queue Item. If you leave the player for a while, it switches into full screen mode. To return to the Home screen, click the close button in the top right of the screen.

5. To add a song, album, artist, or entire storage device to the library, right-click it and then choose Scan Item to Library. To turn off Library mode, you can browse music that isn’t in it yet, use the View Options menu again.

6. To create static playlists, go into your music device or library, click Playlists in the pane on the left, and then New Playlist. The playlist window opens so you can browse to the songs you want, and right click to add them. When you’re finished, click Save Playlist and follow the instructions to save it. To close the playlist window, right-click when the mouse pointer is not over a file. Smart playlists can only contain songs that have been added to the music library, but standard playlists can contain songs from any of your connected media devices.

Source : http://www.dummies.com/how-to/content/how-to-play-music-on-your-raspberry-pi.html