America's musical heritage starts with Negro Spirituals, says Dr. Everett McCorvey, founder and director of the internationally acclaimed American Spiritual Ensemble. "I call Spirituals the mother music, an art form truly founded in this country," he says. American Negro Spirituals are one of American history's great ironies. "Swing Low, Sweet Chariot" and "Go Down, Moses" are among the world's most beloved melodies, created in the harsh, degrading reality of slavery.