William Finn is an award-winning American composer and lyricist, especially of musicals. He also serves as an Adjunct Faculty Composer/Lyricist at New York University.
Finn is especially well noted for his work on what was to become a trilogy of short musical shows off-Broadway. ‘In Trousers’, ‘March of the Falsettos’, and ‘Falsettoland’ all chronicle the lives of the same characters. Finn also wrote ‘A New Brain’ and ‘Falsettos’, the combination of the latter two parts of his Falsettos Trilogy, which opened on Broadway at the John Golden Theater on April 29, 1992, and ran for 486 performances. It won the 1992 Tony Awards for Best Music and Lyrics and for Best Book. More recently, Finn scored another Broadway success with ‘The 25th Annual Putnam County Spelling Bee’, for which he wrote both music and lyrics. The show won two Tony Awards in 2005.
Source - Wikipedia http://en.wikipedia.org/wiki/William_Finn