dance to the death, cheerful

The time of cherries, cheerful

Sad or happy, cheerful and melodious

Poetry of birds (music box version, very pleasant), cheerful

Vanessa's smile, naughty

Sunshine dancing, sweet orange, naughty

Walking in the rain. Pi

Zhang Yiyi -Valentine's Day is cheerful

Always with me is cheerful

The city of the sky (music box version) has a good melody

These are all songs that meet your requirements, I hope to help you.