For one, music should not be rooted in the tastes of the people through a kind of democratic principle. If this is the case, we sing and play what appeals to the group at hand, and the result will be composition that usually lacks theological concern and musical depth.What a great message for the church today. You can read his complete post here.
Second, it seems to me that we must not sing and play, as an end in itself, what simply “preserves our particular heritage.” Scripture will not endorse the idea that the primary function of our music is the preservation of heritage, as important as that heritage may be.
Third, it should be obvious that the place of music in the church is not entertainment! Such an approach treats music as a kind of escape valve. Music can certainly have a place for entertaining us elsewhere, but worship is never conceived of as entertainment in the whole of Scripture.
Finally, any philosophy that treats music as an end in itself is suspect and unhelpful. This is the “art for art’s sake” idea. It often drives certain churches that take great pride in their “high cultural” approach to liturgy and form in music. The answer to this is simple: Art for Christ’s sake is our goal!