According to the information on Music Review.com, this course is worth buying. The explanation is as follows:

1. Little Bear Music is produced by Meihuabao Education and is aimed at preschool children aged 4-8. An online intelligent learning platform positioned to provide music literacy and interest enlightenment.

2. Each vocal class is 20 minutes long and consists of five sessions. After each session, there will be a teaching design to review knowledge points to strengthen children's memory of knowledge points and learn vocal music better.

3. The course content has added children's adaptations of popular songs. Children will have a higher awareness of the teaching content and have a stronger interest in learning. At the same time, it will stimulate children's understanding and exposure to richer music styles.