playful, children, Children’s Day, cute, upbeat, education, melodic, bright, interesting, childlike, innocent, festival, bouncy, easy, piano
关键词有：顽皮，儿童，儿童节，可爱，乐观，教育，旋律，明亮，有趣，童真，天真，节日，活泼，轻松，钢琴