Fantaisie-Impromptu

Frédéric Chopin's Fantaisie-Impromptu in C♯ minor is a solo piano composition. It is one of his best-known pieces. It was composed in 1834. Chopin did not want the work to be published. Even so, it was published by Julian Fontana.^[1]

Main Theme of the Fantaisie-Impromptu

The structure of the piece is in A B A Coda form. Some aspects of this piece are similar to Beethoven's "Moonlight" Sonata. The opening tempo is allegro agitato. It changes to largo for the two bars after the 'A' section. The tempo for most of the 'B' section is moderato cantabile. Finally, after the 'B' section, it changes to presto. The piece on a C-sharp major rolled chord.