1. It can be pure music: Anne's Wonderland, Wind Dancer, Nightingale, Enchanted Forest, Brand New World, Mark of the Rain, etc.

2. It can also be children’s songs: Health Song, Rainbow Promise, Counting Ducks, Hug Me If You Love Me, Flying Insects, etc. These songs are all in a light and joyful style, which is more suitable for recording the baby's growth.