1. Concept: Each system holds the concept that music belongs to everyone, but in practice, the emphasis is slightly different.

2. Objectives: Orff's teaching method pays attention to cultivating students' emotions, Kodaly's teaching method emphasizes the all-round development of music, Dalcroze's teaching method pays attention to the fun of music, and suzuki method pays attention to the humanistic color of music.

3. Teaching content: Although perceptual music experience is the basic teaching goal in the four major music education systems, there are differences in specific teaching content. For example, Orff's teaching method emphasizes rhythm, Kodaly's teaching method emphasizes singing, Dalcroze's teaching method emphasizes body rhythm, and Suzuki's teaching method emphasizes music appreciation and musical instrument learning.

4. Emphasis: The four major music education systems have their own emphasis and characteristics.

To sum up, the four major music education systems are different in concept, goal, teaching content and emphasis, but they are all committed to making more people enjoy the pleasure and benefits brought by music.