Accordion to Who?
Caroline Lammers, 5, left, practices with her brother, Alex Lammers, 9, both of Alexandria, Va. before off to the pool July 13, 2017 during the American Accordionists' Association AAA Festival 2017 at The Westin Princeton at Forrestal Village in Princeton, N.J. The two are the youngest competing accordionists according to their mother, Christina Busso, not shown. Asked if they ever fight, "They play the accordion, how much trouble can they get into? They're good kids," Busso said. (Corey Perrine/For The Wall Street Journal)