Answer:
Étude Op. 10, No. 12 in C minor, known as the "Revolutionary Étude" or the "Étude on the Bombardment of Warsaw",[1] is a solo piano work by Frédéric Chopin written circa 1831, and the last in his first set, Etudes, Op. 10, dedicated "à son ami Franz Liszt" ("to his friend Franz Liszt").
