Polish organist Agnieszka Rybak-Piotrowska will be giving a solo organ recital in the Assembly Hall on Temple Square on Tuesday, August 13 at 7:30 p.m. Her program is titled, “A God of Miracles: The Miracle on the Vistula,” and will tie in to the Polish national holiday of August 15, during which the Polish people celebrate their country’s 1920 victory over Soviet-Russia during the Polish-Soviet War.