The thrill is gone. So is B.B. King. Now what happens to blues music?

The death of B.B. King forces us to think about the custody of the blues itself. Where does the music go now? Or has it already left? And to where?King, who died in Las Vegas on Thursday at the age of 89, was one of the last in a pantheon of great electric blues players. With the help of his famous guitar Lucille, he forged a sound that was admired as eagerly as it was copied.