Question: What play was the musical Dag Achatz his own transcription of Bernstein's Symphonic Dances from based on?

full_context: Document 1: Stephen Sondheim: Stephen Joshua Sondheim ( ; born March 22, 1930) is an American composer and lyricist known for more than a half-century of contributions to musical theatre. Sondheim has received an Academy Award, eight Tony Awards (more than any other composer, including a Special Tony Award for Lifetime Achievement in the Theatre), eight Grammy Awards, a Pulitzer Prize, a Laurence Olivier Award, and a 2015 Presidential Medal of Freedom. He has been described by Frank Rich of "The New York Times" as "now the greatest and perhaps best-known artist in the American musical theater." His best-known works as composer and lyricist include "A Funny Thing Happened on the Way to the Forum", "Company", "Follies", "A Little Night Music", "Pacific Overtures", "", "Merrily We Roll Along", "Sunday in the Park with George", "Into the Woods", "Assassins", and "Passion". He also wrote the lyrics for "West Side Story" and "Gypsy".
Document 2: The Rite of Spring (The Bad Plus album): The Rite of Spring is a 2014 album by jazz trio The Bad Plus. It is the group's ninth studio album. It is an interpretation of the Igor Stravinsky orchestral composition.
Document 3: 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.
Document 4: Trois mouvements de Petrouchka: Trois mouvements de Petrouchka or Three Movements from Petrushka is an arrangement for piano of music from the ballet "Petrushka" by the composer Igor Stravinsky for the pianist Arthur Rubinstein.
Document 5: Jerome Robbins: Jerome Robbins (October 11, 1918 – July 29, 1998) was an American choreographer, director, dancer, and theater producer who worked in classical ballet, on Broadway, and in films and television. Among his numerous stage productions he worked on were "On the Town", "Peter Pan", "High Button Shoes", "The King And I", "The Pajama Game", "Bells Are Ringing", "West Side Story", "", and "Fiddler on the Roof"; Robbins was a five time Tony Award winner and a recipient of the Kennedy Center Honors. He received two Academy Awards, including the 1961 Academy Award for Best Director with Robert Wise for "West Side Story". A documentary about his life and work, "Something to Dance About", featuring excerpts from his journals, archival performance and rehearsal footage, and interviews with Robbins and his colleagues, premiered on PBS in 2009 and won both an Emmy and a Peabody Award the same year.
Document 6: A Boy Like That: "A Boy Like That" is a song from the 1957 Broadway musical "West Side Story", with music by Leonard Bernstein and lyrics by Stephen Sondheim. In the musical, the song is paired with "I Have a Love" and is sung by the characters Anita and Maria. For the original Broadway cast recording, the song was performed by Chita Rivera (Anita) and Carol Lawrence (Maria). In the 1960 film version the roles were played by Rita Moreno and Natalie Wood, but the songs were dubbed by Betty Wand and Marni Nixon (as both Anita and Maria). However, the repeat of the two stanzas, sung by Anita, along with Maria's counterpoint of her defense, was omitted because of the complexity of the song, as well as to avoid the repetition, which would have slowed down the pace of the film.
Document 7: Jerome Robbins' Broadway: Jerome Robbins' Broadway is an anthology comprising musical numbers from shows that were either directed or choreographed by Jerome Robbins. The shows represented included, for example, "The King and I", "On the Town" and "West Side Story". Robbins won his fifth Tony Award for direction.
Document 8: West Side Story (Original Broadway Cast): West Side Story (Original Broadway Cast) is the 1957 recording of a Broadway production of the musical "West Side Story". Recorded 3 days after the show opened at the Winter Garden Theatre, the recording was released in October 1957 in both mono and stereo formats. In 1962, the album reached #5 on Billboard's "Pop Album" chart. It certified "gold" by the RIAA on January 12, 1962. The album was reissued in 1973 and made its first appearance on CD in 1986. A 1997 remastered edition includes nine additional tracks of Leonard Bernstein conducting the New York Philharmonic through symphonic versions of the songs at the Manhattan Center on March 6, 1961.
Document 9: Tonight Quintet: The "Tonight Quintet" is a song from the musical "West Side Story" (1957), with music by Leonard Bernstein and lyrics by Stephen Sondheim. Carol J. Oja has written that, "with the 'Tonight' quintet, Bernstein once again created a masterpiece of ensemble, one that rivals the best of such moments in European opera." Her remark echoes the earlier view of Will Crutchfield. In his review of the 1984 studio performance of "West Side Story", which was conducted by Bernstein himself, Crutchfield wrote that the release of the recording "is above all an occasion for celebrating one of the great operas of our century. ... This idea is hotly resisted, but the best argument for it is here on the records in the music itself. I can see no reason why the 'Tonight' ensemble should not be compared to the quartet from "Rigoletto"."
Document 10: Robert Schumann's Davidsbündlertänze: Robert Schumann’s “Davidsbündlertänze” is one of the last major works made by New York City Ballet's founding choreographer and balletmaster-in-chief George Balanchine. It is set to Robert Schumann's "Davidsbündlertänze" ("Dances of the League of David"), Op. 6 (1837). The idea for setting this piano work very likely came from a work created by Robert Joffrey for his own Joffrey Ballet Company, the premier of which took place at the City Center Theater in the late 1970s. Joffrey, in turn, received his inspiration from Jonathan Watts, a protege of Joffrey's and director of the Joffrey apprentice company, who, at the suggestion of pianist Neil Stannard (yours truly), created a ballet titled "Evening Dialogues" to this same score. This initial version of the Schumann cycle was featured on tour with the Joffrey second company in the mid 1970a.
Document 11: West Side Story: West Side Story is a musical with a book by Arthur Laurents, music by Leonard Bernstein, lyrics by Stephen Sondheim and conception and choreography by Jerome Robbins. It was inspired by William Shakespeare's play "Romeo and Juliet".
Document 12: Dag Achatz: Dag Achatz is a Swedish virtuoso pianist and composer. His recording for BIS of his own transcription for solo piano of Igor Stravinsky's "The Rite of Spring" is widely acknowledged to be one of the great recordings of the 20th century. Leonard Bernstein asked him to transcribe his ballet "Fancy Free", which Achatz then recorded along with his own transcription of Bernstein's Symphonic Dances from "West Side Story".
Document 13: Thomas Rajna: His first commercial recording was the complete piano solo works of Igor Stravinsky. Since then he has recorded music by Alexander Scriabin, Robert Schumann and Olivier Messiaen, the piano part of Igor Stravinsky's "Petrushka" with the New Philharmonia under Erich Leinsdorf, and Béla Bartók's "Music for Strings, Percussion and Celesta" with Sir Georg Solti and the London Symphony Orchestra. He has completed a cycle of recordings devoted to the entire piano music of Enrique Granados. Subsequently he undertook to record Franz Liszt's 12 "Transcendental Etudes" and "12 Etudes", Op. 1. Rajna has often performed his own two piano concertos.
Document 14: The Rite of Spring: The Rite of Spring (French: Le Sacre du printemps ; Весна священная, "Vesna svyashchennaya", "sacred spring" ) is a ballet and orchestral concert work by the Russian composer Igor Stravinsky. It was written for the 1913 Paris season of Sergei Diaghilev's Ballets Russes company; the original choreography was by Vaslav Nijinsky, with stage designs and costumes by Nicholas Roerich. When first performed, at the Théâtre des Champs-Élysées on 29 May 1913, the avant-garde nature of the music and choreography caused a sensation and a near-riot in the audience. Although designed as a work for the stage, with specific passages accompanying characters and action, the music achieved equal if not greater recognition as a concert piece, and is widely considered to be one of the most influential musical works of the 20th century.
Document 15: West Side Story (film): West Side Story is a 1961 American musical romantic drama film directed by Robert Wise and Jerome Robbins. The film is an adaptation of the 1957 Broadway musical of the same name, which in turn was inspired by William Shakespeare's play "Romeo and Juliet". It stars Natalie Wood, Richard Beymer, Russ Tamblyn, Rita Moreno, and George Chakiris, and was photographed by Daniel L. Fapp, A.S.C., in Super Panavision 70. Released on October 18, 1961 through United Artists, the film received high praise from critics and viewers, and became the second highest grossing film of the year in the United States. The film was nominated for 11 Academy Awards and won 10, including Best Picture (as well as a special award for Robbins), becoming the record holder for the most wins for a movie musical.
ground_truth: "Romeo and Juliet"