In this April 9, 2012 photo, violins are shown on display at the Violins of Hope exhibit at the University of North Carolina in Charlotte, N.C. Eighteen violins recovered from the Holocaust and restored by Israeli violin maker Amnon Weinsten make their U.S. debut on Sunday, April 15. Some were played by Jewish prisoners in Nazi concentration camps, while others belonged to the Jewish Klezmer musical culture. (AP Photo/Chuck Burton)