Music Periodicals Database (Full-text)

Covers many scholarly and popular music journals.  Music Periodicals Database (Full-Text) indexes and provides full text for some, not all, journal articles.

RILM Abstracts of Music Literature (1967-current) 

Covers scholarly periodicals, dissertations and chapters of books in a variety of languages.Clear, verified bibliographic information, fully cited, abstracted, and indexed. RILM Abstracts provides citations for both print and electronic sources. NO full text.

JSTOR (JSTOR)

JSTOR is not an index, but may be used to search texts of those 112 music journals that appear in JSTOR.  JSTOR acts like an index for the journals it covers since it can be searched by keyword.