The Metropolitan Opera has settled labor contracts with two of its largest unions. Jonathan Ticler/Metropolitan Opera hide caption

itoggle caption Jonathan Ticler/Metropolitan Opera

Members of the American Guild of Musical Artists and the American Federation of Musicians, two of the unions embroiled in contract negotiations with Metropolitan Opera management, rally this morning at Dante Park across from Lincoln Center. Jeff Lunden/for NPR hide caption

itoggle caption Jeff Lunden/for NPR

A worker unveils posters Tuesday for the coming season of New York's Metropolitan Opera. The Met's fall schedule could be in jeopardy if failed labor negotiations result in a lockout Friday. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

Austrian pianist Paul Wittgenstein (who later became an American citizen) lost an arm in World War I. He commissioned composers including Maurice Ravel to write pieces for the left hand alone. Bettmann/CORBIS hide caption

itoggle caption Bettmann/CORBIS

Bryn Terfel as Wotan in the Met's production of Wagner's Ring cycle, one of the productions that has been criticized by some as too costly. Ken Howard /Metropolitan Opera hide caption

itoggle caption Ken Howard /Metropolitan Opera

Metropolitan Opera General Manager Peter Gelb has warned union workers of a lockout if a contract deal isn't settled by July 31. Astrid Stawiarz/Getty Images hide caption

itoggle caption Astrid Stawiarz/Getty Images

New York Philharmonic principal trumpeter Philip Smith plays at New York's Park Avenue Armory in a performance in June 2012. Chris Lee/Courtesy of the New York Philharmonic hide caption

itoggle caption Chris Lee/Courtesy of the New York Philharmonic

Glenn Dicterow joined the New York Philharmonic as its concertmaster in 1980. He has performed as its soloist every year since. Chris Lee/Courtesy of the artist hide caption

itoggle caption Chris Lee/Courtesy of the artist

Stephanie Blythe (left) as Gertrude Stein and Elizabeth Futral as Alice B. Toklas in the Opera Theatre of Saint Louis' 2014 production of 27. Ken Howard/Opera Theatre of Saint Louis hide caption

itoggle caption Ken Howard/Opera Theatre of Saint Louis

Andrew Stenson plays Pvt. Danny Chen in An American Soldier, a new opera about the hazing and death of the Chinese-American soldier from New York City. Sarah Tilotta/NPR hide caption

itoggle caption Sarah Tilotta/NPR

Music collective Bang on a Can All-Stars is one of the musical partners sharing a bill with the New York Philharmonic during the Biennial. Konstantin Sergeyev/Courtesy of the artist hide caption

itoggle caption Konstantin Sergeyev/Courtesy of the artist

The 85 musicians in the Santa Cecilia Orchestra are paid professionals who play with other symphonies and in Hollywood studios. Courtesy of the Santa Cecilia Orchestra hide caption

itoggle caption Courtesy of the Santa Cecilia Orchestra

In a scene from the Cleveland Orchestra's The Cunning Little Vixen, two actors (Julie Boulianne as Dog and Martina Jankova as Vixen) appear from behind a computer-animated backdrop. Roger Mastroianni/Cleveland Orchestra hide caption

itoggle caption Roger Mastroianni/Cleveland Orchestra