By the time Sung graduated from the Curtis Institute of Music with a bachelor's degree, he had performed again with the Philadelphia Orchestra, toured extensively with the South Jersey Symphony Orchestra, and debuted with the Concerto Soloists Orchestra (currently known as the Chamber Orchestra of Philadelphia).[1] During his final year of study, Sung started touring collaboratively with legendary violinist Aaron Rosand. That partnership eventually led to his appointment as staff pianist at the Curtis Institute in 1993. Three years later, he was named Director of Instrumental Accompaniment, and then in 1998, Director of Student Recitals.
Sung has been an advocate for utilizing cutting-edge technologies to enhance the artistry of the classical musician.[5][6] He developed a customized database to create a paperless office for his administrative work at Curtis. In 2002, shortly after the first Tablet PC's were introduced by Microsoft to the public, Sung adapted an early model for use as a digital music score reader with a foot pedal-activated page turning system.[7][8] Currently, he is experimenting with live visualization techniques using programs such as Liquid Media and particle generators such as particleIllusion in a framework called the Visual Recital.[6]