Book excerpt: The purpose of this volume is to: (1) establish the importance of music--especially in Luther's early life, in his education in the schools, and in his life in the monastery--in shaping his understanding of the role of music in the Christian life; (2) show how Luther's developing understanding of music in Christian life and worship led him to a practical and many-faceted involvement in a variety of music's aspects; (3) bring into sharp relief several distinct paradigms, or patterns of thought, that dominated Luther's theological understanding of the role of music in the church's life and ministry.