Wonsun is a professional cellist educated at internationally renowned top music schools. She has performed in collaboration with top musicians, and has over 10 years of teaching experience, both private and group lessons. She received a scholarship to obtain her Masters Degree in Music from Yale University, and another scholarship from the Great Mountain Music Festival in 2007. She has performed at the Tokyo Opera House, with the Korean Symphony Orchestra, and with the Yale Symphony at Carnegie Hall in New York.