"The Man I Love," "Fascinating Rhythm," "Someone to Watch Over Me," "A Foggy Day"--together the Gershwin brothers wrote 700 songs and dozens of shows that defined an age and revolutionized the musical theater. Essential to any consideration of their achievement is this work, the only book to closely examine the brothers' extraordinary collaboration. This pioneering work--which grew out of extensive interviews with Ira Gershwin and draws on much unpublished...