1. A paragraph of body. Because the section can already express a relatively complete musical idea and has a certain ability to independently shape music, it can not only be an integral part of music, but also can become a complete piece of music alone. This musical form consisting of one section is called "one section body". The musical image expressed in a piece of song is generally concentrated.

2. Two sections. The musical form composed of the combination of two sections is called "two-section form" or "duology form". The characteristic of the two-section music is that the termination of the first section can be complete or incomplete according to the needs of the music; the melody and rhythm of the second section should be different from those of the first section. For example: "Real Hero", "Ocean, My Hometown", etc.

3. Three-section body. Generally speaking, it refers to the ending of the first section on the basis of two sections to strengthen the theme of the first section, or it is composed of three interrelated and different melodies, often expressed as: A B A, or A B C. For example, songs such as "Farewell My Concubine" and "Flying Ambition". In addition to the several musical forms mentioned above, there are also larger and more complex musical form structures such as "multi-section music form", "plural music form", and "sonata form".

Sonata form:

It is mainly composed of three parts. The first part is the presentation part, which includes two contrasting parts: the main part and the auxiliary part (sometimes there is a connecting part between the main part and the auxiliary part; after the auxiliary part, there is sometimes an ending part). The second part is the development part, which fully changes and develops the musical materials in the presentation part to create a dramatic climax.

The third part is the recapitulation, which repeats or changes the music of the presentation. In addition to the above three parts, an introduction sometimes appears before the music section, and an epilogue sometimes appears after the recapitulation. Use a diagram to represent it, such as:

(Introduction) = gt; Presentation part {{[Main part] (Connection part) = gt; [Secondary part] (End part)}} = gt; Expansion part = > Recapitulation {{[main part] (connection part) = gt; [sub part] (end part)} = gt; (end).