The annual approach to Passion season and Holy Week affords a timely opportunity to consider how the theological context of 18th-century Lutheranism informs Bach's music. This month, we hear from one of the world's foremost Bach scholars who works on this topic: Dr. Michael Marissen, Daniel Underhill Professor Emeritus of Music at Swarthmore College. Michael is a popular public speaker and author of numerous scholarly books and articles along with pieces for the New York Times (click here for a more recent Times article on Bach's Calov Bible) and Huffington Post. Our wide-ranging conversation covers his recent book, Bach and God (published in 2016 by Oxford University Press), the evolving nature of Bach studies, the relationship between early Lutheranism and Judaism, and the tricky (but intellectually necessary) process of attempting to interpret Bach's music relative to the Lutheran theological tradition that he inherited and in which he composed.