Guo Zheng, associate professor and director of Tongguan teaching and Research Office, Guangzhou Xinghai Conservatory of music. Born in Jiangsu Province in 1976, he is vice president of the trombone and tuba Federation of China Philharmonic Association, chief of the horn voice Department of Guangzhou Symphony Orchestra, director of brass Department of Guangzhou Symphony Orchestra (1997-2009), guest performer of Hong Kong Orchestra, founder of Guangzhou Golden Brass Quintet and founder of Guangdong low tone brass ensemble.