自音樂事務處於1977年成立起，音樂事務處圖書館一直支援本處教學和訓練的需求，並透過保存本處音樂活動的刊物，紀錄其歷史和發展。圖書館現有逾30,000項館藏，種類包括中西樂團、室樂合奏、獨奏及合唱等樂譜，以及音樂書籍、音樂教材、視聽及參考資料等。

Since the establishment of the Music Office in 1977, the Music Office Library has been serving to support the teaching and training needs of the Office, and record its history through archiving publications of its music activities. The Library is currently housing more than 30,000 items with collections ranging from Chinese and Western orchestral, ensemble, solo and choral scores, to music books, music training, audio-visual and reference materials, etc.