With “If/Then” wrapping up a month-long Broadway preview on Sunday at Washington’s National Theatre, theater-goers have been debating how to work out the kinks in the complex musical, written by Tom Kitt and Brian Yorkey, and starring the amazing Idina Menzel.

Performer Idina Menzel stars in the musical "If/Then" at The National Theatre through Dec. 8. (Courtesy National Theatre/The Washington Post)

Post critic Peter Marks gave the production a mixed review, and the creators will be tinkering – or wholesale rewriting – in the months leading up to the New York opening on March 5.

Courtesy of National Theatre

Here’s your chance to join the discussion. Which scenes should they add or cut and why? (Marks mentions Kate’s kindergarten scene and Stephen’s hospital scene.) What about the songs and the choreography? What holes do you discern in the plot, and what would you do about them? Can this split-story concept work?

Tell us your suggestions in the comments below.