Daniel Barenboim’s impending departure from the Chicago Symphony had been long-expected, and the perception is that his relationship with the CSO management had soured. The conductor, who has never been shy about expressing himself, admits as much in a recent interview, and in between questions about the affair he had while married to Jacqueline duPre, he insists that he isn’t the least bit tired of conducting, merely of what always comes with the job in America. “I can’t stand going out to one more dinner with some Mrs So-and-So who might leave a million dollars to the Chicago Symphony Orchestra when she dies.”