There’s a new musical out being billed as the latest from John Kander and Fred Ebb. But Ebb died (of a heart attack) in 2004, so how can this be? The two had such a close partnership, it’s impossible to thibnk of one without the other. “If that relationship, which produced the scores to ‘Cabaret’ and ‘Chicago’ and ‘Kiss of the Spider Woman,’ was often misunderstood as romantic, it’s not hard to see why: the two men worked in the theater, neither had a wife, and over the course of their 42-year collaboration their last names had all but fused into one, a songwriting entity that Mr. Kander, now a vigorous 79, calls ‘Kandernebb’.”