On the town with Larry Keigwin
In some ways, Larry Keigwin is living out the themes of "If/Then," the Broadway show that he choreographed, which had a tryout here last fall and recently opened in New York. The show stars Idina Menzel as a recent divorcee faced with too many new opportunities. How to choose among them? Well, she doesn't. She gets it all: In a bit of musical-theater dreamweaving, we watch her future unfold along two different paths…