Christian Zacharias is “a pianist of ideas. One always learns something important about the compositions he performs, about the composers whose works he’s playing, about music as such, from the way he plays.” So said The New Yorker in its review of a recent performance with similar repertoire as the program Zacharias offers in his PCMS recital. “The overarching idea of the recital turned out to be: Beethoven is a god, Schubert is a demigod, and Schumann is their prophet.”