Biography: Yoon Kwon Costello leads an extraordinarily versatile career. With her debut with the New Jersey Symphony Orchestra, Yoon began her professional career as a thirteen-year-old, and made her New York debut at age 17 at Avery Fisher Hall. Since then, she has performed extensively with major orchestras on five continents, such as the Cologne and Warsaw Philharmonics, and the California, Cincinnati, Colorado, El Paso, Houston, Honolulu, New Jersey, New Mexico, Phoenix, St. Louis, Wichita, and Vancouver symphonies.