With their charismatic, youthful image, the members of South Korea's Novus Quartet might be taken as Korean classical music's answer to the country's ubiquitous K-pop boy bands. Their musical approach, however, is traditional; Western-trained, the group has competed successfully in top European prize events and performed across continental Europe, in Britain, and in Japan as well as in its home country. The Novus Quartet was formed in 2007 in Seoul, where all its members had studied at South Korea's National University of the Arts. They immediately made an international splash...