For musical content has been written much. "4" is in my humble opinion, not only one of the best rock albums of all time, but also one of the best (and most resistant to aging) modern Musikdarreichungen ever. "4" to experience in such acoustic splendor ... because not a dry eye.
Very nice by the way is also the possibility of the panel as a video DVD with still images and a highly respectable sounding DD 5.1 soundtrack on surround systems to be able to play without DVD-Audio player.