From the perspective of analyzing music, music can be divided into the following four levels:

1. The level of sound structure

mainly analyzes the composition of various musical elements of music, such as melody, rhythm, dynamics, speed and timbre.

2. Grammatical structure level

Study the structural organization of music language, such as harmony, form, beat, layout and other grammatical rules.

3. Expression content level

Investigate the artistic conception, emotion and ideological content conveyed by music.

4. Style characteristics level

Discuss the style characteristics of music works, such as romantic music, impressionist music and other different genres.

These four levels are from the shallow to the deep, from musical elements to style features, and from the individual to the whole, and gradually deepen the analysis of the connotation of music. They are interrelated, and * * * together constitute a comprehensive understanding of musical works. This analytic hierarchy process is one of the systematic music appreciation methods in musicology. When listening to music, we should pay attention to layered analysis, so that we can understand the meaning of music works more deeply.