Vice President of the Mozart Society Orchestra (MSO) David Y. Oh '00, who was Jo's roommate during the summer of 1998, said he encouraged Jo, a viola player, to join the MSO.
Oh said Jo was an active participant throughout the year and played in several orchestra pits for campus drama productions, including last year's Dunster House Opera show, Candide.
Won S. Shin '00, one of Jo's friends in Kirkland House, said that although Jo may have seemed "quiet and shy" to people who did not know him, he was "always quick to lend a hand or make a joke."
Shin remembered his own birthday dinner celebration as a first-year, when Jo had to leave the restaurant before eating.
"When the rest of us were done and asked for the check, we discovered that Chang had discreetly paid for all of us," Shin wrote in an e-mail message. "Chang was truly a unique and special human being. He will be sorely missed because there will never be anyone else like him."
Jo was survived by his parents, Kuk Nam and Jong Geum Jo of Cerritos, Calif., and an older brother, Chang B. Jo '93, of New York City.