THREE UNFORGETTABLE CHARACTERS. THREE TRANSFORMATIVE TIMES IN HISTORY. ONE MYSTERIOUS HARMONICA THAT UNITES THEM ALL. Trossingen, Germany, 1933-Friedrich is a musical prodigy. Philadelphia, Pennsylvania, 1935-Orphaned Mike is a gifted pianist. Los Angeles, California, 1942-Ivy is a talented flutist whose Mexican-American family takes a job farming the land of an interned Japanese family. At the center of these stand-alone stories is a unique harmonica that lands in all three children’s lives, mysteriously affecting them and ultimately connecting them.