Question: What one-act ballet's music was written by an Austrian composer and conductor?

Context paragraphs:
Carmen Suite (ballet): Carmen Suite is a one-act ballet created in 1967 by Cuban choreographer Alberto Alonso to music by Russian composer Rodion Shchedrin for his wife, prima ballerina assoluta Maya Plisetskaya.  The premiere took place on 20 April 1967 at the Bolshoi Theatre, Moscow.  The music, taken from the opera "Carmen" by Georges Bizet and arranged for strings and percussion, is not a 19th-century pastiche but rather "a creative meeting of the minds," as Shchedrin put it, with Bizet's melodies reclothed in a variety of fresh instrumental colors (including the frequent use of percussion), set to new rhythms and often phrased with a great deal of sly wit.  Initially banned by the Soviet hierarchy as "disrespectful" to the opera for precisely these qualities, the ballet has since become Shchedrin's best-known work and has remained popular in the West for what reviewer James Sanderson calls "an iconoclastic but highly entertaining retelling of Bizet's opera."

Different Drummer: Different Drummer is a one-act ballet created by Kenneth MacMillan in 1984 for the Royal Ballet.  The music is by Anton Webern (Passacaglia for Orchestra, Op. 1) and Arnold Schoenberg ("Verklärte Nacht").  The story is based on the play "Woyzeck" by Georg Büchner.

Symphonic Variations (ballet): Symphonic Variations is a one-act ballet by Frederick Ashton set to the eponymous music (M. 46) of César Franck.  The premiere, performed by the Sadler's Wells Ballet, took place at the Royal Opera House, Covent Garden, on 24 April 1946 in a triple bill; the other works were Ashton's "Les Patineurs" and Robert Helpmann's "Adam Zero".  The ballet was conducted by Constant Lambert and the set designed by Sophie Fedorovitch.

Les Rendezvous: Les Rendezvous is a plotless one-act ballet created in 1933, with choreography by Frederick Ashton to the music of Daniel Auber (the ballet music from his opera "L'enfant prodigue") arranged by Constant Lambert and with designs by William Chappell.  It was the first major ballet created by Ashton for the Vic-Wells company.

Anton Webern: Anton Friedrich Wilhelm (von) Webern (] ; 3 December 188315 September 1945) was an Austrian composer and conductor.  Along with his mentor Arnold Schoenberg and his colleague Alban Berg, Webern was at the core among those within and more peripheral to the circle of the Second Viennese School, including Ernst Krenek and Theodor W. Adorno.  As an exponent of atonality and twelve-tone technique, Webern exerted influence on contemporaries Luigi Dallapiccola, Křenek, and even Schoenberg himself.  As a tutor, Webern guided and variously influenced Arnold Elston, Frederick Dorian (Friederich Deutsch), Matty Niël, Fré Focke, Karl Amadeus Hartmann, Philipp Herschkowitz, René Leibowitz, Humphrey Searle, Leopold Spinner, and Stefan Wolpe.

Flore et Zéphire: Flore et Zéphire is a one-act ballet choreographed by Charles-Louis Didelot to music by Cesare Bossi, premiered in London at the King's Theatre, Haymarket on Thursday, 7 July 1796.  The ballet tells the story of Zephyr, the fickle west wind, and his wife Flora, a nymph of flowers and springtime.  The ballet was originally composed in 1795 for performance in Lyon, France, and was revised in 1796 prior to its London premiere.  "Flore et Zéphire" used "flying machines" to send dancers soaring above the stage on nearly invisible wires, in order to enhance the presentation of Flora and Zephyr as spirits of the air.  The ballet is credited with the introduction of dancing "en pointe" to the stage.

Fanfare (ballet): Fanfare is a one-act ballet made by New York City Ballet ballet master Jerome Robbins to Benjamin Britten's "The Young Person's Guide to the Orchestra", Op.34 (1945), in celebration of the Coronation of Queen Elizabeth II.  The premiere took place on the night of the coronation, Tuesday, June 2, 1953 at City Center of Music and Drama, New York.

Swan Lake (Balanchine): Swan Lake is a one-act ballet made by New York City Ballet's co-founder and ballet master George Balanchine to Tschaikovsky's eponymous music (1875–56).  The premiere took place Thursday, 20 November 1951 at the City Center of Music and Drama, New York.

Ballo della Regina: Ballo della Regina is a one-act ballet choreographed by George Balanchine to music by Giuseppe Verdi.  It is a set of variations set to ballet music (titled "La Peregrina") that Verdi cut from Act 3 of the original 1867 version of his opera "Don Carlos".  Its premiere performance was on 12 January 1978, by the New York City Ballet at New York State Theater in Lincoln Center.

The Rite of Spring (MacMillan): The Rite of Spring is a one-act ballet created by Kenneth MacMillan in 1962 for the Royal Ballet.  The music is Igor Stravinsky's "The Rite of Spring" (1913).  The conductor was Colin Davis; the designs were by Sidney Nolan.

Supporting paragraphs: Different Drummer Anton Webern
Answer: Different Drummer