12 Etudes Op. 25

The Études by Frédéric Chopin are three sets of études (solo studies) for the piano published during the 1830s. There are twenty-seven compositions overall, comprising two separate collections of twelve, numbered Op. 10 and Op. 25, and a set of three without opus number. Chopin's Études formed the foundation for what was then a revolutionary playing style for the piano. They are some of the most challenging and evocative pieces of all the works in concert piano repertoire. Because of this, the music remains popular and often performed in both concert and private stages. All twenty-seven études were published during Chopin's lifetime; Op. 10, the first group of twelve, were composed between 1829 and 1832, and were published in 1833, in France, Germany, and England. The twelve études of Op. 25 were composed at various times between 1832 and 1835, and were published in the same countries in 1837. The final three, part of a series called Méthode des méthodes de piano compiled by Ignaz Moscheles and François-Joseph Fétis, were composed in 1839, without an assigned opus number. They appeared in Germany and France in November 1840, and England in January 1841.