What are the June 1 themes related to piano, chess, calligraphy and painting?

Calligraphy and painting, guzheng performance.

1. Calligraphy painting: In the theme of Children's Day on June 1st, activities focusing on calligraphy painting are very popular, allowing children to express their thoughts and feelings.

2. Guzheng performance: Guzheng performance is a form of performance with China characteristics in the celebration of Children's Day on June 1st. Children can participate in guzheng performance competitions or watch professional guzheng performance concerts.