Which opera, Iphigénie en Aulide or Lulu,  is an opera in three acts by Alban Berg"?
Iphigénie en Aulide 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.
Der Wein "Der Wein " (The Wine) is a concert aria for soprano and orchestra, composed in 1929 by Alban Berg. The lyrics are from Stefan George's translation of three poems from Charles Baudelaire's "Les Fleurs du mal ", as is the secret text of Berg's "Lyric Suite". "Die Seele des Weines" (The Wine's Soul), "Der Wein der Liebenden" (The Wine of Lovers), and "Der Wein des Einsamen" (The Wine of the Lonely One). The aria was dedicated to Ružena Herlinger, its commissioner and first performed in Königsberg on June 4, 1930 with Hermann Scherchen.