Modern music Why it is popular for its【A6】________and rhythmic beat. Its origins Country music features【A7】_____

One of America’s most important exports is her modern music. American music is played all over the world. It is enjoyed by people of all ages in every country. Though the lyrics are English, nevertheless people not speaking English enjoy it. The reasons for its popularity are its fast pace and rhythmic beat.
    Music has many origins in the United States. Country music, coming from the rural areas in the southern United States, is one source. Country music features simple themes and melodies describing day-to-day situations and the feelings of country people. Many people appreciate this music because of the emotions expressed by country music songs.
    A second origin of American pop music is the blues. It depicts mostly sad feeling reflecting the difficult lives of American blacks. It is usually played and sung by black musicians, but it is popular with all Americans.
    Rock music is a newer form of music. This music style, featuring fast and repetitious rhythms, was influenced by the blues and country music. It was first known as rock-and-roll in the 1950s. Since then, there have been many forms of rock music：hard rock, soft rock and others. Many performers of rock music are young musicians.
    Some American pop songs are popular all over the world. People hear these songs sung in their original English or sometimes translated into other languages. The words may differ but the enjoyment of the music is universal.