 Many films produced in the Soviet Union were patriotic in nature and the music in such films also carried a positive tone of Soviet pride, incorporating aspects of folk music and other Russian musical influences, in addition to the influences of the ethnic communities that made up the federal state's 14 other republics.Popular music during the early years of the Soviet period was essentially Russian music.One of the most well-known songs "Katyusha" by Matvei Blanter is close to the melodic, rhythmic, and harmonic structures of Russian romantic songs of the 19th century.