"Can you believe I had to play Bach with a gun?"

Ben Lando for The Wall Street Journal - Llewellyn Kingman Sanchez-Werner rehearses with his Iraqi hosts on the Rasheed Hotel's baby grand.

BAGHDAD—Karim Wasfi, director and conductor of the Iraqi National Symphony, was waiting in the lounge of the Rasheed Hotel one recent afternoon for two things: the arrival of a 13-year-old American pianist scheduled to headline a rare concert here; and the Steinway grand he was supposed to play.
The prodigy, Llewellyn Kingman Sanchez-Werner, was coming from New York. The piano was coming from the symphony's rehearsal space, just five miles away from the hotel. Mr. Wasfi was more worried about the piano.

 Mr. Wasfi's orchestra has faced many such obstacles. Its predecessor, the Baghdad Symphony Orchestra, started in 1944 and was shut down again and again over the decades by the strains of war, economics or politics. After Saddam Hussein was deposed, in the postinvasion chaos, Mr. Wasfi recalls, instruments were broken, music sheets ripped, a concert hall burned. "It was a grotesque scene," he says.

In the following years, the orchestra often waited until the last minute to reveal concert times to avoid an attack on such a large, high-profile gathering. Mr. Wasfi says he once took to carrying a sidearm for protection. "Can you believe I had to play Bach with a gun?"

Mr. Sanchez-Werner, the young pianist, is also a musician with a mission: "to fulfill my passion of doing things for the world…at a humanitarian level." A Juilliard student, he plans to play in Rwanda this summer, for the second time, and says he will perform at the Kennedy Center next year for the 50th anniversary celebration of the United Farm Workers. He performed at the White House in December.

 Thirteen years old? Quite impressive.

Mr. Wasfi wore coattails for the concert. After closing with Rimsky-Korsakov's "Scheherazade," he and Mr. Sanchez-Werner embraced on stage.

Iraq is "a nation that is so wonderful," the pianist says, "but struggled so much it needs to have something like that in which they can participate."