Teaching and coaching at NYO-USA. Each summer, Carnegie Hall’s Weill Music Institute (WMI) brings together the brightest young players from across the country to form the National Youth Orchestra of the United States of America (NYO-USA), a free program for all participants. Following a comprehensive audition process and a three-week training residency with leading professional orchestra musicians, these remarkable teenagers embark on a tour to some of the great music capitals of the world while serving as dynamic music ambassadors.