Leoš Janáček (1854–1928) Czech composer, musical theorist, folklorist, publicist & teacher. In 1874 Janáček became friends with Antonín Dvořák, & began composing in a relatively traditional romantic style. After his opera Šárka (1887–1888), his style absorbed elements of Moravian & Slovak folk music. Much of Janáček's work displays great originality & individuality. It employs a vastly expanded view of tonality, uses unorthodox chord spacings & structures, & often, modality
Jacques Offenbach (1819 – 1880) was a German-born French composer, cellist and impresario of the romantic period. He is remembered for his nearly 100 operettas of the 1850s–1870s and his uncompleted opera The Tales of Hoffmann. He was a powerful influence on later composers of the operetta genre, particularly Johann Strauss, Jr. and Arthur Sullivan. His best-known works were continually revived during the 20th century, and many of his operettas continue to be staged in the 21st.