Whenever you hear the prevalent wailing blues harmonica in commercials, film soundtracks or at a blues club, you are experiencing the legacy of the master harmonica player, Little Walter. Immensely popular in his lifetime, Little Walter had fourteen Top 10 hits on the R&B charts, and he was also the first Chicago blues musician to play at the Apollo. Ray Charles and B.B. King, great blues artists in their own right, were honored to sit in with his band. However, at the age of 37, he lay in...