About :The Chopin Etudes are two books of twelve Piano etudes each published by the French-Polish composer Frédéric Chopin in the 1830s. The first book, Op.10, is dedicated 'to his friend F. Liszt'. The third etude of Op.10 was subtitled 'Sadness' by one of the editors, because of the great beauty of the melody, of which Chopin is said to have said that he would never write anything more beautiful. It is primarily a melodic study. It involves a great deal of work on the independence of the fingers, each hand having to play two distinct voices.