Works such as Mikhail Glinka’s second opera, Ruslan and Liudmila (1842), paved the way for the development of a cosmopolitan musical Romanticism with Russian roots. Later, Sergei Prokofiev would graduate from this tradition. While still a student at the St. Petersburg Conservatory in 1912, he completed and premiered his Piano Concerto No. 1. But Prokofiev would prove to be a rebellious student in his musical endeavours, and this concert became a challenge to the conservative values of the institution. Two years later, he would write his “Classical” Symphony, a modern reinterpretation of the eighteenth-century style of Haydn and Mozart.