Master ZHANG Zai-Xing (1925-2010), a well-known Nan-Guan (southern style orchestration) musician, was born in Quan-Zhou, Fu-Jian province, China. At the age of 18, he learned Nan-Guan from Master LIN Pong-Shu and ZHU Ren-Ru. Then, he moved to Taiwan in 1946. As a government servant for more than 30 years, he successively learned Nan-Guan from Master SHEN Meng-Xiong, Master WU Yan-Dian, and Master LIAO Kun-Ming. In his spare time, he was keen to participate in Nan-Guan music activities. He ever participated in Yu-Long Hall in Hsinchu, Feng-Sheng Club in Chiayi, Nan-Sheng Chinese Music Club and Min-Nan Music Club in Taipei, Quan-Jun Troupe in Keelung, Tong-Sheng Club and Wu-Miao Zhen-Sheng Club in Tainan, Nan-Yue Foundation, He-Ming South Music Club, and Association of Xia-Men Fellow Provincials in Taipei, and served as a consultant for many Nan-Guan music groups in Taiwan and in foreign countries. During his lifetime, ZHANG was enthusiastic about promoting Nan-Guan music events and actively participating in international and cross-strait exchanges of Nan-Guan music. Besides promoting Nan-Guan music, he also strived to amend scores of Nan-Guan music. In 1962, he compiled the "Selected Collection of Famous Nan-Guan Songs," which was republished many times and was taken as one of the most important scores for Nan-Guan music learners. In addition, he also led Nan-Guan music performers in Taiwan to Quan-Zhou, Fujian, the Philippines, Malaysia, Singapore, South Korea, and many other countries for exchange affairs, playing a pivotal role in Nan-Guan music world.