Old B (Billy) is a member of Mini Noise, a professional social worker, who is good at using social issues and people's livelihood conditions to become creative inspiration and write music. Recorded albums include: how beautiful, dead valley, rotten valley, etc. In the album "Xiang Village" published by the Kongcheng Project, he collaborated with Pingche Villager Cai Ge to write: Dangdang Mountain Dance.

Brother Cai (Zhang Guicai), a villager in Pingche, cherishes the land and loves singing.