12/15/20 Eve of Beethoven's 250th Birthday This was also published in ConcertoNet.com Igor Levit, the young German-Russian pianist, knows how to get to the heart of a matter. In 2016, he delayed a performance to address the audience on tolerance and human rights. This May he live-streamed Erik Satie's Vexations for a global audience, repeating the same four lines for nearly 20 hours to express the frustration of art…