Le songe d'une nuit d'été ("A Midsummer Night's Dream") is an opéra-comique in three acts composed by Ambroise Thomas to a French libretto by Joseph-Bernard Rosier and Adolphe de Leuven.
 Although it shares the French title for Shakespeare's play, "A Midsummer Night's Dream", its plot is not based on the play.
 Shakespeare himself is a character in the opera as are Elizabeth I and Falstaff.
In the First Folio, the plays of William Shakespeare were grouped into three categories: comedies, histories, and tragedies, though today many scholars recognize a fourth category, romance, to describe the specific types of comedies that appear as Shakespeare's later works.
A Midsummer Night's Dream is a 1999 romantic comedy fantasy film based on the play "A Midsummer Night's Dream" by William Shakespeare.
 It was directed by Michael Hoffman.
 The ensemble cast features Kevin Kline as Bottom, Michelle Pfeiffer and Rupert Everett as Titania and Oberon, Stanley Tucci as Puck, and Calista Flockhart, Anna Friel, Christian Bale, and Dominic West as the four lovers.
Egeus is a character in "A Midsummer Night's Dream", the comedy by William Shakespeare.
 He is an Athenian who tries to keep his daughter, Hermia, from marrying Lysander the man she loves.
 In original performances, the actor for his role probably played the part of Philostrate as well.
The Cinq grimaces pour Le songe d'une nuit d'été ("Five Grimaces for A Midsummer Night's Dream") is a set of incidental music pieces for orchestra by Erik Satie.
 Composed in 1915 for a planned circus-style staging of Shakespeare's play "A Midsummer Night's Dream", it marked the composer's first collaboration with author Jean Cocteau.
 The production failed to materialize and Satie's music went unperformed in his lifetime.
 His score was published posthumously in 1929.
Midsummer Dream (Spanish: El Sueño de una noche de San Juan , meaning "A Dream of a Night of Saint John", the feast of Saint John, celebrated on the night of June 23, being the traditional midsummer feast in Spain and Portugal) is a 2005 computer-animated film from Dygra Films, the creators of "The Living Forest".
 Made in Spain and Portugal, the film is loosely based on William Shakespeare's play "A Midsummer Night's Dream".
The Donkey Show: A Midsummer Night's Disco is a theatrical adaptation of Shakespeare's "A Midsummer Night's Dream".
 The production, created in a disco-era style, was written by Diane Paulus and her husband Randy Weiner and the members of Project 400, Emily Hellstrom, Jordin Ruderman, Rachel Murdy and Anna Wilson.
 It first appeared Off-Broadway, opening August 18, 1999.
 The show subsequently ran for six years including venues in England, Scotland, France and Spain.
 After a successful run at the Edinburgh Festival the Donkey Show show came to London for a 8 month run in Londons West End (Hanover Grand).
 The London show was produced by David Babani and Graham Kentsley.
 Rob Goodmonson (NYC) played the part of the DJ in the UK production.
 In 2009, the show was revived by the American Repertory Theater in Cambridge, Massachusetts, for which Paulus is Artistic Director.
 The club/theater space used in Cambridge is called OBERON, after the king of the fairies in "A Midsummer Night's Dream".
A Midsummer Night's Dream is a 2016 British television film based on the William Shakespeare play "A Midsummer Night's Dream".
 It was adapted by Russell T Davies, directed by David Kerr and produced by Nikki Wilson.
 It stars Maxine Peake as Titania, Matt Lucas as Bottom, John Hannah as Theseus and Nonso Anozie as Oberon.
 The film was first broadcast on 30 May 2016 on BBC One.
A Midsummer Night's Dream is a two-act ballet choreographed by George Balanchine to Felix Mendelssohn's music to Shakespeare's play of the same name.
 In addition to the incidental music, Balanchine incorporated other Mendelssohn works into the ballet, including the Overtures to "Athalie", "Son and Stranger", and "The Fair Melusine", the "String Symphony No. 9 in C minor" and "The First Walpurgis Night".
 "A Midsummer Night's Dream", Balanchine's first completely original full-length ballet, premiered at New York City Ballet on 17 January 1962, with Edward Villella in the role of Oberon, Melissa Hayden in the role of Titania, and Arthur Mitchell in the role of Puck.
 The ballet employs a large children's corps de ballet.
 Act I tells Shakespeare's familiar story of lovers and fairies while Act II presents a strictly classical dance wedding celebration.
 The ballet dispenses with Shakespeare's play-within-a-play finale.
 "A Midsummer Night's Dream" opened The New York City Ballet's first season at the New York State Theater in April, 1964.
A Midsummer Night's Dream is a 1968 film of William Shakespeare's play "A Midsummer Night's Dream", directed by Peter Hall.

Question: Into how many categories do scholars group the early works of the author of the play A Midsummer Night's Dream?
Answer: three