由中国录音师协会、中共北京市通州区委宣传部、北京市通州区文化委员会主办,北京国际版权交易中心协办,通州区梨园镇政府、北京现代音乐研修学院承办的“第三届北京·九棵树数字音乐节暨‘中国联通’数字音乐内容及音乐器材展览会”于2012年6月15日在北京现代音乐学院盛大开幕。“九棵树数字音乐节”以构建中国最大的数字音乐产业聚集地、打造北京最大的数字音乐交易中心为目标; Sponsored by China Sound Recording Association, Propaganda Department of Tongzhou District CPC Beijing Municipal Committee, Beijing Tongzhou District Cultural Committee, Beijing International Copyright Exchange Center, Beijing Tongzhou District Liyuan Town Government and Beijing Modern Music Training Institute, Nine Tree Digital Music Festival and ’China Unicom’ Digital Music Content and Musical Equipment Exhibition “was grandly opened on June 15, 2012 at the Beijing Modern Conservatory of Music. ”Jiuquhu Digital Music Festival " to build China’s largest gathering of digital music industry, to build Beijing’s largest digital music trading center as the goal;