text: The dedicatee of this composer's opus 18 studied with John Field at the Geneva Academy.
full_question: The dedicatee of this composer's opus 18 studied with John Field at the Geneva Academy. This man's heart was removed from a stone pillar by scientists in 2017 to investigate the uncertain cause of his death. In second half of his life, he performed mostly in private settings, socializing with Parisians such as Franz Liszt, Eugene Delacroix, and George Sand. Name this master of the solo piano, with notable works including the 'Heroic' Polonaise in A-flat major and the 'Minute' Waltz.
first_sentence: The dedicatee of this composer's opus 18 studied with John Field at the Geneva Academy.