From New Orleans and the back roads of the Mississippi Delta to Harlem and Chicago, black musicians set enduring and distinctive standards for American creativity. The blues of Ma Rainey and Bessie Smith, the gospel of Mahalia Jackson, the jazz of Duke Ellington, and the soul of Marvin Gaye claim fans of all ages from around the world. The trumpeting genius of Louis Armstrong and Dizzy Gillespie illustrate the exceptional musicianship so prominent in various genres of African-American music.