All this week, we'll be focusing our lens on the music of Robert Schumann and the lasting impact of his work. Leading the conversation is pianist Jonathan Biss, who's making a 30-concert project ...

Robert Schumann was a German composer and critic born in Zwickau on June 8, 1810. A quirky, problematic genius, he wrote some of the greatest music of the Romantic era, and also some of the weakest.