Melody, chords, rhythm and beat, speed and dynamics, timbre, musical structure, lyrics and language style.

1. Melody: It is the main body of music, mainly displayed through musical instruments or human voices. It is a sound line that can depict specific emotions, images or processes.

2. Chord: It is a specific sound form composed of intervals, which represents a certain emotional color and expressive function in tonal music.

3. Rhythm and beat: They are also important components of music and work together to produce a specific sense of time.

4. Speed ??and intensity: These marks are clearly expressed on the staff and can express different musical personalities and emotions.

5. Timbre: refers to the characteristic timbre of various musical instruments in their pronunciation characteristics. Different types of musical instruments have completely different timbre characteristics.

6. Musical structure: refers to the organization method of music. Whether a song is an A-type music form or a C-type music form depends on the content.

7. Lyrics and language style: They can convey specific content information to the audience and affect the semantic style of the work.