Question: Which person who contributed to the classic story of the same name by Hans Christian Andersen is an American musical theatre and film score composer and pianist?

Context paragraphs:
The Little Mermaid Jr (musical): The Little Mermaid is a stage musical produced by Disney Theatrical, based on the animated 1989 Disney film of the same name and the classic story of the same name by Hans Christian Andersen about a mermaid who dreams of the world above the sea and gives up her voice to find love.  Its book is by Doug Wright, music by Alan Menken and lyrics by Howard Ashman (written for the film), with additional lyrics by Glenn Slater.  Its underwater setting and story about aquatic characters requires unusual technical designs and strategies to create gliding movements for the actors.  The Little Mermaid Jr first became available to license by the company Music Theater International and Disney Theatrical Productions

Alan Menken: Alan Irwin Menken (born July 22, 1949) is an American musical theatre and film score composer and pianist.  Menken is best known for his scores for films produced by Walt Disney Animation Studios.  His scores for "The Little Mermaid" (1989), "Beauty and the Beast" (1991), "Aladdin" (1992), and "Pocahontas" (1995) have each won him two Academy Awards.  He also composed the scores for "Little Shop of Horrors" (1986), "Newsies" (1992), "The Hunchback of Notre Dame" (1996), "Hercules" (1997), "Home on the Range" (2004), "Enchanted" (2007), "Tangled" (2010) and "Sausage Party" (2016), among others.  He is also known for his work on musical theatre works for Broadway and elsewhere.  Some of these are based on his Disney films, but other stage hits include "Little Shop of Horrors" (1982), "A Christmas Carol" (1994) and "Sister Act" (2009).

Thumbelina (1994 film): Thumbelina (also known as Hans Christian Andersen's Thumbelina) is a 1994 American animated musical fantasy film directed by Don Bluth and Gary Goldman from a screenplay by Bluth based on the book of the same name by Hans Christian Andersen and starring the voices Jodi Benson, Gary Imhoff and Joe Lynch, with supporting roles from Gino Conforti, Gilbert Gottfried, Carol Channing and John Hurt.  The film was produced by Don Bluth Entertainment and was released to movie theaters by Warner Bros.  Family Entertainment on March 30, 1994.

The World of Hans Christian Andersen: The World of Hans Christian Andersen (アンデルセン物語 , Andersen Monogatari ) is a 1968 Japanese animated family fantasy film from Toei Doga, based on the works of Danish author Hans Christian Andersen.  It was released in Japan on March 19, 1968.  The film was licensed in North America by United Artists in 1971.

Allumette: A Fable: Allumette; A Fable, with Due Respect to Hans Christian Andersen, the Grimm Brothers, and the Honorable Ambrose Bierce, by Tomi Ungerer, was originally published in 1974.  It is a "reimagining" of "The Little Match Girl" by Hans Christian Andersen.  The book's extended title references Andersen, for "The Little Match Girl", as well as fairy tale authors the Brothers Grimm, and satirist Ambrose Bierce.  The book was initially published in 1974, and carried in the United States by Parents' Magazine Press and Scholastic, both bargain retailers.  It was also briefly reprinted in 1986, but has since gone out of print again.

Hans Christian Andersen Museum: The Hans Christian Andersen Museum is a museum dedicated to famous author Hans Christian Andersen in Odense, Denmark.  It is located in the building which is thought his birthplace, a small yellow house on the corner of Hans Jensens Stræde and Bangs Boder in the old town.  In 1908, the house was opened as the Hans Christian Andersen Museum.  It documents his life from his childhood years as the son of a struggling shoemaker, to his schooling, career as an author, and later life, with artefacts providing an insight into his acquaintances and adventures.  Andersen's childhood home is on Munkemøllestræde not far from the cathedral.  He lived in the little half-timbered house from the age of two until he was 14.  Opened as a museum in 1930, the house contains an exhibition of the cobbling tools used by his father and other items based on Andersen's own descriptions.

The Little Mermaid (musical): The Little Mermaid is a stage musical produced by Disney Theatrical, based on the animated 1989 Disney film of the same name and the classic story of the same name by Hans Christian Andersen about a mermaid who dreams of the world above the sea and gives up her voice to find love.  Its book is by Doug Wright, music by Alan Menken and lyrics by Howard Ashman (written for the film), with additional lyrics by Glenn Slater.  Its underwater setting and story about aquatic characters requires unusual technical designs and strategies to create gliding movements for the actors.

Hans Christian Andersen: My Life as a Fairytale: Hans Christian Andersen: My Life as a Fairytale is a 2001 semi-biographical television miniseries that fictionalizes the young life of Danish author Hans Christian Andersen.  It was directed by Philip Saville and starred Kieran Bew as the title character.  Various Hans Christian Andersen fairytales are included as short interludes of the story, and intertwined into the events of the young author's life.

Thumbelina (1992 film): Thumbelina is a 49-minute animated film originally released on June 8, 1992, based on the classic story "Thumbelina" by Hans Christian Andersen.  Like all other Golden Films productions, the film featured a single theme song, "Little Teeny Thumbelina," written and composed by Richard Hurwitz and John Arrias, as well as the classic song "Edelweiss."

Hans Christian Andersen (film): Hans Christian Andersen is a 1952 Hollywood musical film directed by Charles Vidor, with lyrics and music by Frank Loesser.  The story was by Myles Connolly, screenplay written by Moss Hart and Ben Hecht (uncredited), and Samuel Goldwyn Productions were the producers.  It is a fictional, romantic story revolving around the life of the famous Danish poet and story-teller Hans Christian Andersen.  The film stars Danny Kaye in the title role.

Supporting paragraphs: The Little Mermaid Jr (musical) Alan Menken
Answer: Alan Irwin Menken