Doo-dah!

Stephen Foster was America's first great songwriter. The composer of classics such as "Oh! Susanna," "Jeanie with the Light Brown Hair," "Beautiful Dreamer," "My Old Kentucky Home," "Old Folks at Home" ("Way down upon the Swanee River"), and "Camptown Races" ("Doo-dah! Doo-dah!"), Foster virtually invented popular music as we recognize it to this day. Yet by his death in 1864, at the early age of thirty-seven, he was all but forgotten. In the first biography of Foster in more than sixty years, Ken Emerson makes the man as well as his music come alive. Foster's life was riddled with…