Double debut doubles pleasure as Nézet-Séguin and Rotterdam Philharmonic take Chicago bows

Review: It was one of those double-take realizations, the improbable fact that conductor Yannick Nézet-Séguin, the high-profile 39-year-old music director of the Philadelphia Orchestra, had never conducted in Chicago – not with the Chicago Symphony, not at all. That – what shall we call it, oversight? – was corrected in stunning fashion when Nézet-Séguin brought his other orchestra, the Rotterdam Philharmonic, to Orchestra Hall on Feb. 20 with a program of Ravel and Prokofiev that confirmed every good report about the conductor and proved little short of revelatory about the Dutch ensemble.