CSO in Europe: Epic escalator, untested hall greet orchestra at Hamburg Elbphilharmonie

Review: Some 600,000 of the curious, and proud, already have taken the long, long escalator ride from street level to the eighth-floor lobby of Hamburg’s brand-new Elbphilharmonie concert hall, where the Chicago Symphony in concerts Jan. 14-15 became the first foreign orchestra to perform on its stage. Both the curiosity and the pride were understandable.