From the bestselling author of How Shostakovich Changed My Mind comes a new book about the cathartic power of music. For critic and composer Stephen Johnson, there have been moments when music has confronted him with life-changing insights. Some of these have been hard to accept, but once accepted they have opened up new possibilities of thinking, feeling and living. Through an exploration of seven pieces -- by Anton Bruckner, Sergei Rachmaninoff, Johann Sebastian Bach, Lili Boulanger, Richard Wagner, Jean Sibelius and Ludwig van Beethoven -- Johnson considers the lives and the intentions of the composers who created them, and how they have affected him personally.