Dante Sonata

Après une lecture du Dante: Fantasia quasi Sonata (French for "After a Reading of Dante: Fantasia quasi Sonata"; also known as the "Dante" Sonata) is a piano sonata in one movement, completed by Hungarian composer Franz Liszt in 1849. It was first published in 1856 as part of the second volume of his "Années de pèlerinage" ("Years of Pilgrimage"). This work of program music was inspired by the reading of Dante Alighieri's most famous epic poem, the "Divine Comedy".
Background.
The "Dante" Sonata was originally a small piece entitled "Fragment after Dante", consisting of two thematically related movements, which Liszt composed in the late 1830s. He gave the first public performance in Vienna, during November 1839. When he settled in Weimar in 1849, he revised the work along with others in the volume, and gave it its present title derived from Victor Hugo's own work of the same name. It was published in 1858 as part of "Années de pèlerinage".
Composition.
The piece is divided into two main subjects. The first, a chromatic theme in D minor, typifies the wailing of souls in Hell. D minor is a common key for music relating to death, as evidenced by Liszt's "Totentanz" and the statue scene of Wolfgang Mozart's "Don Giovanni". The first theme also heavily uses the tritone (augmented 4th or diminished 5th); this interval was known as the Devil's interval (or "Devil in music") and further reinforces the hellish imagery. The second theme is a beatific chorale in F-sharp major, derived from the first, which represents the joy of those in Heaven. The key is also symbolic here, being the signature for other uplifting works of Liszt's, including "Benediction of God in Solitude" (part of "Harmonies poétiques et religieuses") and "Les Jeux d'eaux à la Villa d'Este" ("Années de pèlerinage", Vol. 3, No. 4). The secondary theme may also represent Beatrice, as it is interspersed within chromatic areas, similar to the character's appearances in hell. The piece ends with a rapid chromatic octave section that when played at speed seems to split into three distinct themes, reflecting the three heads of Satan in Dante's "Inferno".