Peter Hasegawa is on the Tokyo run . . . conducting postgraduate research, studying at Keio University, tutoring Japanese students at international schools in English, and trying to organize a visit by the Yale capella group, Shades. But only until Dec. 23, when he flies home to Connecticut for the Christmas break.

He will be there right now, making key-lime pie. "It's a U.S. version of lemon meringue pie, but made with the extremely tart limes that grow only on Florida Keys. Is it a tradition? No, just my favorite dessert." )

Peter is on a yearlong sabbatical from Yale University, where he specializes in East Asian studies and Japanese art. He is "yonsei," meaning fourth-generation Japanese-American, and his patriarchal great-great grandparents emigrated to the United States from Kyushu.