The sixteen killer Depression-era blues tracks assembled here laid the foundation for Chicago's volcanic post-war blues eruption, and each of these performances are as penetrating and visceral as anything which followed. With a stellar roister that includes Sonny Boy Williamson, Robert Lockwood, Tampa Red, Robert Nighthawk and the great country blues mandolinist Yank Rachell, from whose marvelously primitive 1938 classic this set takes its title.