Listen to Impromptu 04 “Fantasy-Impromptu” C flat minor online. Impromptu 04 “Fantasy-Impromptu” C flat minor is an English language song and is sung by Samson François. Impromptu 04 “Fantasy-Impromptu” C flat minor, from the album Instant Classical Culture, was released in the year 2010. The duration of the song is 1:41. Download English songs online from JioSaavn.