The document provides an overview of prominent Romantic period composers from the early 19th century including Schubert, Schumann, Chopin, Liszt, Mendelssohn, Berlioz, Dvořák, Tchaikovsky, Brahms, Verdi, Puccini, Wagner, and Clara Wieck Schumann. It summarizes their biographies, musical styles, and contributions to music during the Romantic era. Key developments included expanding harmony, forms of nationalist music, and virtuosic piano and orchestral works that explored a wider range of expression.