The 12th Étude appeared around the same time as the November Uprising in 1831. Chopin poured his emotions on the matter into many pieces that he composed at that time, the "Revolutionary Étude" standing out as the most notable example. Upon conclusion of Poland's failed revolution against Russia, he cried "All this has caused me much pain. Who could have foreseen it!"[2] Unlike études of prior periods (works designed to emphasize and develop particular aspects of musical technique), the romantic études of composers such as Chopin and Liszt are fully developed musical concert pieces, but still continue to represent a goal of developing stronger technique.