Happy Notes Series is a curriculum system based on the study of music and brain, multiple intelligences and psychological theories, starting from the all-round development view of human beings, drawing lessons from the educational theory of Kodaly, a world-famous music educator, and Hungarian music education practice, and absorbing excellent teaching methods such as Orff and Dalcroze, aiming at the musical potential of children aged 0-6.

The series of happy note courses is the scientific research achievement of the sub-project "Happy note music course promotes children's potential development" of the 11th Five-Year Plan of China Education Association and the key project "Application of Kodaly's music education thought in kindergartens" of China Women's University. Since 2004, under the leadership of more than experts from the research group 10, with the participation of Beijing Normal University, China Conservatory of Music, China Women's College and other institutions of higher learning, and with the practice of more than 100 well-known kindergartens and nearly 1000 front-line teachers in China, the course "Music Potential Development" has been carefully created for six years.