Jesus told us to love one another, and that we would be known by our love. He said nothing about our music preferences. Honestly, I could go to church and be perfectly happy with Sunday school and preaching with no music. Our worship leader tries to mix it up as far as the music goes, but if it were really about my preference, I'd choose traditional. I love the old hymns, and I like some contemporary, at least those songs where we don't repeat something 20 times (and this does happen in the church I attend). I know someone in the church probably likes it, so if it makes them happy and worshipful, then I don't let it bother me. And people will worry and fight much more about music and care less about accountability.