The document summarizes vocal music of the Romantic period from 1820-1910 and profiles famous opera composers from that era. It notes that romantic vocal forms like art songs and operas featured fantasy, the supernatural, romance, and using nature as a reflection of the human heart. It then provides brief biographies and lists of famous works for five major opera composers from this period: Franz Schubert, Giuseppe Verdi, Giacomo Puccini, Richard Wagner, and Georges Bizet. Their operas helped establish new forms of expression and pushed the boundaries of vocal performance.