What Is Worship Music? is a welcome addition to the series, Basics of the Faith. Few authors are more qualified to write on the subject, since Paul Jones is not only a superb musician, but a thoughtful scholar. The premise of the book is simple, yet profound: worship music should be music that is authorized by God, according to Scripture, for his greater glory. The historical material from the Reformation tradition is rich, and helps clarify the cherished idea of the Regulative Principle in worship. Paul Jones bars no holds when he attacks the cheapening of music, which is ultimately the gospel, in a misguided attempt to appeal to the shallow surrounding culture. This is a first rate guide for pastors, musicians, and worshiping congregations.