Toward the end of my studies at the University of Minnesota, I prepared a conducting recital with the choir of which I was a member. As a Christian, and because of my interest in church music, I selected a program entirely of sacred music. A friend who was a pastor attended the concert. Afterwards, he found me and asked, “These singers in the choir—are they all Christians?” “Maybe one or two,” I answered. “Then why would unbelievers want to sing this music?” he asked in amaze