The Jewish Chamber Orchestra Munich, mezzo-soprano Shachar Levi, and conductor Daniel Grossmann present songs by Mieczysław Weinberg and orchestral works by two composers who have all but vanished from history. Jozef Koffler, a Polish Jew, was captured with his wife and young son by German troops in the city of Lwów in 1944, deported to the ghetto in Wieliczka and …