Music of Russia denotes music produced from Russia and/or by Russians. Russia is a large and culturally diverse country, with many ethnic groups, each with their own locally developed music. Russian music also includes significant contributions from ethnic minorities, who populated the Russian Empire, the Soviet Union and modern-day Russia. Russian music went through a long history, beginning with ritual folk songs and the sacred music of the Russian Orthodox Church. The 19th century saw the rise of highly acclaimed Russian classical music, and in the 20th century major contributions by various composers such as Igor Stravinsky as well as Soviet composers, while the modern styles of Russian popular music developed, including Russian rock, Russian hip hop and Russian pop. History Early history Written documents exist that describe the musical culture of the Rus'. The most popular kind of instruments in medieval Russia were thought to have been string instruments, such as the gusli or gudok. Archeologists have uncovered examples of these instruments in the Novgorod region dating as early as 11th century. (Novgorod republic had deep traditions in music; its most popular folk hero and the chief character of several epics was Sadko, a gusli player). Other instruments in common use include flutes (svirel), and percussive instruments such as the treshchotka and the buben. The most popular form of music, however was singing. Bylinas (epic ballads) about folk heroes such as Sadko, Ilya Muromets, and others were often sung, sometimes to instrumental accompaniment. The texts of some of these epics have been recorded. In the time the Tsardom of Russia, two major genres formed Russian music: the sacred music of the Orthodox Church and secular music used for entertainment. The sacred music draws its tradition from the Byzantine Empire, with key elements being used in Russian Orthodox bell ringing, as well as choral singing. Neumes were developed for musical notation, and as a result several examples of medieval sacred music have survived to this day, among them two stichera composed by Tsar Ivan IV in the 16th century. Secular music included the use of musical instruments such as fipple flutes and string instruments, and was usually played on holidays initially by skomorokhs – jesters and minstrels who entertained the nobility. During the reactionary period of the Great Russian Schism in the 17th century, skomorokhs along with their form of secular music were banned from plying their trade numerous times,