Musicmatch can synchronize your Windows wallpaper to the CD cover art for each MP3, WAV, or Musicmatch Radio track you play.
Go to the menu Options/Settings/Display and in the Musicmatch Wallpaper section select the box Use album art as wallpaper.
Click the drop-down box and choose to have the cover art Tile, or Center on your Windows desktop.
Click OK.
When playing digital audio from your computer you must have the tracks tagged with cover art in order for Musicmatch Wallpaper to work correctly. Musicmatch Radio tracks are tagged for you.
To turn off Musicmatch Wallpaper go back to the menu Options/Settings/Player and unselect the box Use album art as wallpaper.