A passage that is often debated related to this issue of worship, and especially music, is Romans 14ff. Opinions abound as to what it really means and what kinds of applications can legitimately be drawn from it.
I offer here two papers that might help to shed some light on the matter for those interested:
Scott Aniol is the founder and Executive Director of Religious Affections Ministries. He is on faculty at Southwestern Baptist Theological Seminary, where he teaches courses in ministry, worship, hymnology, aesthetics, culture, and philosophy. He has written several books, dozens of articles, and speaks around the country in churches and conferences. He is an elder in his church in Fort Worth, TX where he resides with his wife and two children.