Mieczyslaw Horszowski-Chopin-“Fantaisie-Impromptu-Op 66″ Composers & Atists https://classicaldaily.com/wp-content/uploads/2018/06/Mieczyslaw-Horszowski1892-1993-1.mp4 Main Theme of the Fantaisie-Impromptu Composed in 1834, Frédéric Chopin’s Fantaisie-Impromptu in C♯ minor Op 66 is a solo piano composition. It is one of Chopin’s most frequently performed and popular composition.