Star violinist Gil Shaham, whose newest recording project surveys the wildly different violin concertos of the 1930s. Luke Ratray/Courtesy of the artist hide caption

itoggle caption Luke Ratray/Courtesy of the artist

Soprano Ailyn Perez and tenor Stephen Costello met in music school. Now married, the couple sings together around the world — as in Gounod's Romeo and Juliet at Opera Philadelphia in 2001. Kelly & Massa Photography/Opera Philadelphia hide caption

itoggle caption Kelly & Massa Photography/Opera Philadelphia

Samuel Barber. Gordon Parks/Time & Life Pictures/Getty Images hide caption

itoggle caption Gordon Parks/Time & Life Pictures/Getty Images