Speaking of blues masters, here's one of my favorites by Albert King. Albert is one of the three great Blues Kings - B.B. King, Albert King, and Freddie King - who all got their starts around the same time and are all regarded as some of the best blues musicians ever. Although B.B. King's fame largely overshadowed the other two, Albert King is still well remembered and highly revered.
Oh, and because you were wondering: No, none of the three Kings are related.