Nursery rhymes have diverse categories, He adds, such as games, educational messages and lullabies. The album includes four lullabies: Changsha Lullaby from Hunan province, Pudong Lullaby from Shanghai, the Cantonese Child, Sleep Well from Guangdong province, and Walk Softly from Fujian province.

He notes that they do not care too much about the "function" or "sense of purpose" of these nursery rhymes.

Instead, they treat the songs more as good "natural" music, which they hope better connects them with audiences.

"Although some of the tracks were born more than 100 years ago, such as Autumn Willows and Row Your Boat, the lyrics and melodies are still beautiful with high standards. Many nursery rhymes were born naturally in local cultures and in the interactions between the parent and child, with distinct features but no commercial intention at all. It is especially precious in the current context," He says.