How often is the Nanning Green Field Music Festival?

Every year. Nanning Lvye Music Festival is held every year, all around 1 1. Nanning, referred to as Greentown and Tancheng for short, is a prefecture-level city under the jurisdiction of Guangxi Zhuang Autonomous Region, a central city of Beibu Gulf Economic Zone approved by the State Council, and a comprehensive transportation hub connecting the southwest with the sea.