Plays Well with OthersBy: Allan Gurganus With great narrative inventiveness and emotional amplitude, Allan Gurganus gives us artistic Manhattan in the wild 1980s, where young artists refugees from the middle class hurl themselves into playful work and serious fun. Our guide is Hartley Mims Jr., a Southerner whose native knack for happiness might thwart his literary ambitions. Through his eyes we encounter the composer Robert Christian Gustafson, an Iowa preacher's son