Dance, one of the eight great arts, is a performing art that uses the body to complete various elegant or difficult movements.

It is generally based on props such as music, with rhythmic movements as the main means of expression.

Dance itself has multiple social meanings and functions, including sports, socialization, etiquette and sacrifice.

In the early days of the origin of human civilization, dance was very important in ceremony, etiquette, celebration and entertainment.

Song (English: Song), a Chinese word, is an art form combining lyrics and music scores.

The music connotation of songs should first establish the relationship between melody and rhythm. There is a saying in traditional composition textbooks: "Melody is the life of a song".

However, in a sense, this sentence denies the extremely important position of rhythm in songs. From the theoretical concept of modern music development, it is more convenient, easier to learn and easier to achieve the internal unity of songs from the perspective of rhythm.

The structure of a song, that is, the "format" of a song, refers to the form of a complete lyric work.

In the creation of lyrics, many lyricists only consider the expression of their feelings, without considering the overall structure of lyrics, which brings difficulties for composers to analyze the musical structure of lyrics and create.

This is also the reason why many lyricists' lyrics are ignored after they are published. Good lyrics will convey endless inspiration to composers, which is also the "heart to heart" of creation.