Étude Op. 25, No. 9 in G-flat major, known as the Butterfly étude, is an étude by Frédéric Chopin. The title Butterfly was not given by Chopin ; however Arthur Friedheim said, "while some titles were superfluous, this one is inadequate."
Mae'r testun uchod ar gael o dan drwydded y CC BY-SA 3.0. Mae'n defnyddio deunydd o erthygl Wicipedia "Étude Op. 25, No. 9 (Chopin)".