Paul Butterfield

The Butterfield Blues Band's East-West might not be revered like Revolver, Blonde on Blonde and Pet Sounds. But make no mistake -- it's one of the landmark albums on 1966 (arguably the greatest year in pop music history). Fusing blues, jazz, soul and funk, the group defined the extended jam that would become the foundation of the San Francisco sound. Crank the title track, featuring a mind blowing exploration into Indian raga, and you'll swear it's the Dead or Quicksilver Messenger Service.