Promote children's emotional development, promote children's cognitive development, etc.

1. Promote children's emotional development: Music can stimulate children's emotions and make them feel different emotions such as joy, relaxation, excitement or sadness. This emotional experience helps young children establish positive emotional attitudes and improve emotional intelligence.

2. Promote children's cognitive development: Background music can help children understand different musical elements, such as melody, rhythm, harmony, etc., and improve their understanding and appreciation of music. Music can also help young children develop space perception and time perception and improve their cognitive level.