Conductor Simon Rattle, who has reportedly told the Berlin Philharmonic he will leave his post there in 2018. Thomas Rabsch/courtesy of the artist hide caption

itoggle caption Thomas Rabsch/courtesy of the artist

Riccardo Muti so impressed composer Carl Orff with his 1980 'Carmina Burana' performance that Orff reworked some tempo and dynamic markings in the score to hew to Muti's interpretation. Torsten Kjellstrand for NPR hide caption

itoggle caption Torsten Kjellstrand for NPR

An advertisement in Moscow for the Chicago Symphony Orchestra's first concerts in Russia in more than two decades. Todd Rosenberg/Courtesy of the Chicago Symphony Orchestra hide caption

itoggle caption Todd Rosenberg/Courtesy of the Chicago Symphony Orchestra

At age 85, conductor Pierre Boulez says he might start to cut back on concerts in favor of spending more time composing. courtesy of Naxos of America, Inc. hide caption

itoggle caption courtesy of Naxos of America, Inc.