Has musicianship gone the way of twitter, instant messaging, sound bites? In this day and age, is an audience’s attention held by a performance punctuated with exaggerated emotionalism? In a scathing review of pianist Lang Lang’s August 30 performance of Chopin’s F minor piano concerto with the Dresden Staatskapelle in Lucerne, Michael Kimmelman suggests Mr. Lang’s playing has everything to do with our high-speed information age mind-set.