The following has been added to the Zotero Group for Ancient World Open Bibliographies and the Ancient World Open Bibliographies Wiki.
Ancient Greek and Roman Music (see other bibliographies on this topic)
Ancient Greek & Roman Music: Selected Bibliography
http://www.iwu.edu/~classics/music.html
Nancy Sultan, Greek and Roman Studies, Illinois Wesleyan University.
No last update date; latest works are 2003.
This bibliography includes books, articles, sound recordings, and web resources, mostly in English. Sections include reference works, general works, primary sources (including on music theory), web resources, and sound recordings.
Ancient World Open Bibliographies 