Die Meistersinger von Nürnberg (] ; "The Master-Singers of Nuremberg") is a music drama (or opera) in three acts, written and composed by Richard Wagner.
 It is among the longest operas commonly performed, usually taking around four and a half hours.
 It was first performed at the Königliches Hof- und National-Theater, today the home of the Bavarian State Opera, in Munich, on 21 June 1868.
 The conductor at the premiere was Hans von Bülow.
Styled a "festa teatrale", "Le feste d'Apollo" consists of a prologue and three self-contained acts on the model of French "opéra-ballet" (the court of Parma was passionately interested in French culture).
 Gluck knew the Archduchess Maria Amalia well as she had sung in two of his operas, "Il Parnaso confuso" and "La corona", in Vienna.
 The composer recycled a lot of music from his earlier operas in the score of "Le feste".
 In fact, the whole of the third act, "Orfeo", is a shorter reworking of his most famous piece, "Orfeo ed Euridice" (1762).
 The overture to the prologue is taken from "Telemaco".
 Gluck later reused some of the choruses in two of the operas he wrote for Paris, "Iphigénie en Aulide" and "Iphigénie en Tauride".
Anna Kaufmann was a German operatic soprano who was a principal artist at the Bavarian State Opera in Munich from 1869 to 1872.
 Just prior to her appointment, the great soprano Mathilde Mallinger had left the Bavarian State Opera and Kaufmann succeeded her in the roles of Elsa in Richard Wagner's "Lohengrin", Elisabeth in Wagner's "Tannhäuser", and Eva in Wagner's "Die Meistersinger von Nürnberg" among other parts.
 She notably created the roles of Woglinde in Wagner's "Das Rheingold" on September 22, 1869 and Fricka in Wagner's "Die Walküre" on June 26, 1869.
 Currently, no further biographical details about Kaufmann's life both before and after her time at the Bavarian State Opera have surfaced.
The Master of Nuremberg (German: Der Meister von Nürnberg) is a 1927 German silent historical comedy film directed by Ludwig Berger and starring Rudolf Rittner, Max Gülstorff and Gustav Fröhlich.
 It is based on the 1868 opera "Die Meistersinger von Nürnberg" by Richard Wagner.
 It was considered artistically unsuccessful because of its overly theatrical presentation.
 It is also known by the alternative title The Meistersinger.
Iphigénie en Aulide ("Iphigeneia in Aulis") is an opera in three acts by Christoph Willibald Gluck, the first work he wrote for the Paris stage.
 The libretto was written by François-Louis Gand Le Bland Du Roullet and was based on Jean Racine's tragedy "Iphigénie".
 It was premiered on 19 April 1774 by the Paris Opéra in the second Salle du Palais-Royal and revived in a slightly revised version the following year.
Herta Glaz (also spelled Hertha; September 16, 1910 in Vienna – January 28, 2006 in Hamden, Connecticut) was an American operatic mezzo-soprano, voice teacher, and opera director of Austrian birth.
 She became a United States citizen in 1943.
 She was a fixture at the Metropolitan Opera between 1942-1956 where she sang in more than 300 performances.
 She was also highly active with the San Francisco Opera between 1944-1951.
 Some of the roles she portrayed on stage were Marcellina in "Le Nozze di Figaro", Annina, Siegrune in "Die Walküre", Flosshilde in "Götterdämmerung" and Magdalene in "Die Meistersinger von Nürnberg".
A bass-baritone is a high-lying bass or low-lying "classical" baritone voice type which shares certain qualities with the true baritone voice.
 The term arose in the late 19th century to describe the particular type of voice required to sing three Wagnerian roles: the Dutchman in "Der fliegende Holländer", Wotan/Der Wanderer in the "Ring Cycle" and Hans Sachs in "Die Meistersinger von Nürnberg".
 Wagner labelled these roles as "Hoher Bass" ("high bass")—see fach for more details.
Kaspar Bausewein (15 November 1838, Aub – 18 November 1903, Munich) was a German operatic bass who was active at the Bavarian State Opera from 1858 through 1900.
 While there, he notably portrayed several characters in the world premieres of operas composed by Richard Wagner.
 He created Pogner in "Die Meistersinger von Nürnberg" (June 21, 1868), Fafner in "Das Rheingold" (September 22, 1869), Hunding in "Die Walküre" (June 26, 1870), and Harald in "Die Feen" (June 29, 1888).
Otto Edelmann (February 5, 1917 in Vienna – May 14, 2003 in Vienna) was an Austrian bass.
 He was born in Vienna and studied singing in Vienna with Gunnar Graarud.
 His debut was at Gera as Figaro in Mozart's "The Marriage of Figaro".
 He later sang the Vienna State Opera, the Edinburgh Festival and the Metropolitan Opera.
 He sang at the Bayreuth Festival immediately after its reopening in 1951 after World War II, performing the role of Hans Sachs in Wagner's "Die Meistersinger von Nürnberg".
 (He also recorded as Veit Pogner the goldsmith in the same work in one of Hans Knappertsbusch's early recorded performances.)
 He also sang Ochs in Richard Strauss's "Der Rosenkavalier" at the first performances in the new Salzburg Festspielhaus in 1960.
 In 1957, he recorded the role of Wotan opposite Kirsten Flagstad in Georg Solti's recording of Act III of Wagner's "Die Walküre" (an album made prior to the later famous complete set of "Der Ring des Nibelungen").
 He died in Vienna.
Adolf Robinson (1838–1920) was an Austrian baritone who had a major opera career during the second half of the 19th century.
 His extensive stage repertoire contained numerous Wagnerian roles such as Wotan in "The Ring Cycle" and Hans Sachs in "Die Meistersinger von Nürnberg".
 Other highlights of his career included the title characters in Rossini's "William Tell", Mozart's "Don Giovanni", Verdi's "Rigoletto", Hérold's "Zampa", and Heinrich Marschner's "Der Templer und die Jüdin".

Question: Die Meistersinger von Nürnberg and Iphigénie en Aulide, are which type of music drama?
Answer: opera