Radu Lupu is one of the foremost Schubertarians when it comes to his piano music with a vast catalogue of Schubert’s recordings, including the 4th Impromptu in A Flat Major from the Op. 90 set, which has already amassed over 24 million streams. Here’s a quote from John Rockwell of the New York Times on Lupu playing Schubert at a recital at Hunter College, New York: “During the Schubert, however, the audience's attentive silence was extraordinary. It was as though Mr. Lupu were employing some sor