Sweeping around West Germany on a four-city concert tour. Soprano Maria Callas, 38, was guilty of not one prima donnybrook, seemed to be newly tranquilized. Though an eye inflammation bedded her down for a day in a Bonn hospital, she gamely went on with the show the next evening, restrained her storied temper even when flashbulbs popped during performances. Cooed her concert agent: "Maria has changed completely. She is a charming, amiable, friendly woman now."
The sourest chords in the grapefruit league were being struck by sometime Yankee Superstar Roger Moris, 27, who had...