The target audience for “Star Wars: In Concert” includes fans of the movie, rock ‘n’ roll concertgoers and, “a distant third, classical music aficionados. … [T]he show’s organizers are hopeful that the grown men who wear Darth Maul costumes to ‘Star Wars’ conventions might somehow be smitten by an easy-to-digest taste of an adagio, glissando and rondo.”