This is the theme song Magic Finger of Little Tree of Wisdom. The specific lyrics are as follows: a finger! Change, change, change, become a caterpillar, climb, climb, climb.

The correlation is as follows

"Little Tree of Wisdom" is a program on cctv- 14 for "infants aged 0-3" and their parents to watch together. It was launched on June 6, 2008, and it is also the only program suitable for children aged 0-3 in China. It can be said that the "Little Tree of Wisdom" is the largest in China.