The intermediary link between music and the object of expression is the uniqueness of music art, and it is also the essential feature of music art. Music is an abstract art form that expresses emotions and thoughts through elements such as sound and rhythm, and the object of expression refers to the content or theme that the music wants to express.

In this intermediary link, the music itself does not directly express the object of performance, but expresses emotions in a special way, that is, through musical language, melody, harmony, rhythm, timbre and other elements. and thoughts.

These elements can be understood as the language of musical art. They convey the emotions and thoughts expressed by music through musical language, and the object of expression becomes the object of the emotions and thoughts expressed by musical art.