The third CD in the I heard it On NPR series, Shake These Blues offers a glimpse into the musical form called the blues. Hewn from trouble, toil, and sorrow, the blues emerged from the South and changed the world. From pioneers like Bessie Smith, Robert Johnson, and Muddy Waters to modern greats like B.B. King and Bonnie Raitt, the fourteen triumphant tracks of Shake These Blues embody all the grit, grace, and gumption we know as the blues.