總音樂主任的主要職責為- (a) 協助助理署長（圖書館及發展）制訂政策、策劃、發展和檢視音樂事務處的工作； (b) 統管音樂事務處的所有行政事宜；統籌行政及專業組別的工作；以及管理和督導高級行政及專業人員； (c) 審議和落實音樂事務處的財政預算及預測，並監察音樂事務處內的資源調配事宜；以及 (d) 監察所有與音樂事務處的政策、運作及活動相關的宣傳及公共關係事宜。 （註：或須不定時工作。）

A Chief Music Officer is mainly deployed to: (a) assist Assistant Director (Libraries & Development) [AD(LD)] in the formulation of policy, strategic planning, development, and review of the work of the Music Office; (b) act as the overall in-charge of all administrative matters of the Music Office; to co-ordinate the work of the administrative and professional sections; as well as to manage and supervise the senior administrative and professional staff; (c) scrutinise and finalise the financial estimates and forecasts of the Music Office and to monitor the deployment of resources within the office; and (d) oversee all publicity and public relations matters related to the policy, operation and activities of the Music Office. (Notes: May be required to work irregular hours.)