contrapuntal skill which leads to the compressed return of the opening material. Calling upon every intellectual resource and fully exploiting the pianist's technical arsenal, it is at this point where a performer's concentration might wane. Each of the sections are examples of Classical forms, which means that this piece is one of the first instances of Double-function form, a musical piece which has two classical forms happening at the same time; one containing others. Already in 1851 Liszt experimented with a non-programmatic "four-movements-in-one" form in an extended work for piano solo called Grosses Concert-Solo. This piece, which in 1865 was published as a two-piano version under the title Concerto pathétique, shows a thematic relationship to both the Sonata and the later Faust Symphony. Arrangements Camille Saint-Saëns, a close friend of Liszt, made a two-piano arrangement of the Sonata in 1914, but it was never published in his lifetime because of rights issues. It was first published in 2004 by Édition Durand in Paris, edited by Sabrina Teller Ratner. According to a letter from Saint-Saëns to Jacques Durand, dated 23 August 1914, the two-piano arrangement was something that Liszt had announced but never realized. Leó Weiner made an orchestral arrangement of the Sonata in 1955. The arrangement has not been published and exists only in manuscript form. It was recorded in 2006 by the orchestra of Hochschule für Musik Franz Liszt, Weimar with Nicolás Pasquet conducting, and in 2009 by the North Hungarian Symphony Orchestra under for the label Hungaroton (HCD 32634). Heinz Roemheld orchestrated the Sonata which is heard on some 1930s movies, including The Black Cat (1934), starring Boris Karloff and Bela Lugosi, The Raven (1935), as well as the Flash Gordon serials (1936) (Chapters 6–13), Werewolf of London (1936), and Mars Attacks the World (1938). An orchestrated version of the lyrical parts of the Sonata appears in the 1960 Hollywood film of Liszt's life called Song Without End. There is an orchestrated excerpt version of the Sonata in the 1952 film Hans Christian Andersen starring Danny Kaye where the ballet scene for "The Little Mermaid" is danced near the end of the film. Frederick Ashton used the Sonata for his 1963 ballet Marguerite and Armand, created for Margot Fonteyn and Rudolf Nureyev, based on "The Lady of the Camellias" by Alexandre Dumas, fils. The original performances used an orchestral transcription of the Sonata by Humphrey Searle. In 1968