<human>:  What books should I read to learn more about Bach's music?
<bot>: Some books to help you learn more about Bach's music include: "Bach: The Learned Musician" by Christoph Wolff, "Bach: The Brandenburg Concertos" by Malcolm Boyd, "Bach and the Patterns of Invention" by Laurence Dreyfus, "The New Bach Reader" edited by Hans T. David, and "Bach: Music in the Castle of Heaven" by John Eliot Gardiner.