When I was coming up, the church that I grew up in was very conservative about music. Then in high school, the music gradually changed. Our youth pastor had taught against rock music, but as we introduced him to more and more of the music that we listened to, the more the music began to change.
In college, the school that I attended was VERY opposed to any type of rock music and individuals who played or listened to Contemporary Christian Music needed to examine their hearts because it was likely that they were not saved. Especially those guys in dc Talk.
Of course, on the other side of the argument are those who look down on individuals who choose not to listen to CCM or Christian rock. It often turns into an either/or situation. No one really wins.
The sad fact is that this argument still rages today. In fact, just recently I had a potential friendship crash and burn before it even got started because of the issue of music. When it comes to the issue of music, I think it is important for us to make sure that we are following our own convictions and not attempting to force them on others. And not letting friendships be decided because of the music that a person listens to.
For a slightly satirical look at this issue, check out the video below.