Broadway veteran David Yazbek hasn't written original music for a production that didn't go on to be nominated for Best Original Score at the Tony Awards. This astonishing 5-for-5 streak is currently capped by his work on "Tootsie", a musical adaptation of the 1982 film of the same name. "I Won't Let You Down" is an in-show audition piece, starting out lethargic, but morphing into something grandiose and memorable by the end--a showstopper!