Memphis

After an eight-hour drive from Dallas, Eddie Floyd looked remarkably rested as he sat in the Stax Music Academy's lunchroom here.  The sharply dressed former Stax Records star, who co-wrote and recorded such soul classics as "Knock on Wood," "634-5789" and "Ninety-Nine and a Half," was at the academy earlier this month to encourage students starting a new semester. 

"I...