Indexes articles, books, dissertations, and other materials on music. Entries include original-language titles, title translations in English, full bibliographic information, and abstracts in English, as well as author, journal, and in-depth subject indexes.

Detailed list of type of items indexed: articles, books, bibliographies, catalogues, conference proceedings, discographies, dissertations, ethnographic recordings, Festschriften, films, iconographies, and videos. Concert reviews, recording notes, and pedagogical manuals are indexed if they are of scholarly interest.