When watching a movie one expects to hear the tempo of the music to rise or fall corresponding to the scene that is being portrayed. It would be at the least distracting to have a love scene where the theme from Sesame Street was playing in the background, or an upbeat adventure song in the middle of a death scene. No, the music is in place to add or heighten the sense of what is going on. So in Churches in relation to a message that is different from the world, in the proclamation of Christ it is at the least distracting when the music is a mimic of the worlds music (or even Christian sub-cultural music) that has now detracted from the scene of Scripture the pastor is trying to convey. Music has an emotion and theology to it that will either lend itself to the sermon or not.
From a music standpoint, I find it interesting that what passes for contemporary music is really more like the light rock music from the 70’s and 80’s. This is hardly contemporary anymore and so does not have the drawing power we would like to think because the music of 2012 is far more advanced and more complex. So in one sense the Church’s attempt to be contemporary is really not. The appeal to the 70’s may be better, to some, than the Psalms, but then both are not really their music. Personally I’d rather learn a complex Psalm or hymn that is conveying the wonder of God’s holiness then try to interpret what some contemporary song means by “shine Jesus shine.” The church would be hard pressed to really become contemporary to the modern music because music of this age has really begun to identify certain classes and genres of people, to appeal to one group in music would be to the exclusion of other groups.