Pop music refers to pop music that is widely circulated all over the world, as opposed to "serious music". Its fundamental feature is that it is easy to be understood, appreciated and performed by most people. These works are generally small in scale, with prominent melody, simple accompaniment and diverse singing styles. The top ten schools of pop music are as follows: country music. Originated in the south and west of the United States, it is called "folk song". In the course of its development, it was renamed "country music" because it absorbed the voices from all over the United States, but it always retained the contents of mother, hometown, vagrancy and love. Disco is the latest American pop music, which originated from black song and dance and is a new dance music. Its basic characteristics are: fast speed, strong sense of rhythm and wide content-from popular black music to Beethoven's symphony. Jazz rock music. Founded in the United States, it originated from black labor songs. It is characterized by flexible tunes and exciting rhythms. Now it is divided into orthodox jazz and industrial jazz. The former has many excellent works, while the latter aims at making money, and its artistic level is not high. Rock music. At first, it was swing music, with a strong sense of rhythm and unrestrained feelings. This kind of music developed from black pop music records in the late 1940s and early 1950s. Can be divided into hard swing and soft swing. Rolling stone music. Evolved from swing dance, the style is to imitate the rough, expressive and obvious rhythm dance of black people. Most of the actors sing with microphones in their hands, pursuing a rhythmic and dynamic African style. The following five kinds include: decadent rock music, with weird, absurd and artificial tunes, which was popular in the early 1970s. Progressive music, with the color of rock music and good sound effects. Pop music is a combination of various genres, with simple tunes and weak rhythm, but rich melodies. Lycra music was influenced by the rhythm of Jamaican traditional folk music and reached its peak in the 1940s. Geisha music, this kind of music is sung without any modification, and sometimes it is completely dry shouting.