It really was just too big of a treatment. The movie is basically about the guy, the woman, and her daughter. If you really think about it, you can list about ten characters from the movie who were actually involved in the plot. The musical brought in too many people.
It should have been a small show like "They're Playing Our Song."
Zippel's lyrics are good, but, coming after "City of Angels", they come off as a disappointment. Jokes about things that will be out of date before the show even closes. (Don't get me started on his lyrics to "Woman In White.")
"A coherent existance after so many years of muddle" - Desiree' Armfelt, A Little Night Music
"Life keeps happening everyday, Say Yes" - 70, Girls, 70
"Life is what you do while you're waiting to die" - Zorba