From the iPod to the car radio, from movie soundtracks to Muzak at the shopping mall, from singing in the shower to the concert arena, music is an unavoidable part of our lives. Not only is music ubiquitous, it is powerful: creating moods, evoking memories and images, uniting people, and providing an outlet of expression for even the most tone deaf among us. Besides its prominent position in culture, music has obviously had a key role in the worship of God's people.