Baker's biographical dictionary of musicians. 6 volumes. In print.
Biographical information on performers, musicologists, theorists, composers, music librarians; historical and contemporary.
Encyclopedia of Popular Music (Online)
Edited by Colin Larkin, "this encyclopedia's 30,000 entries cover all genres and periods of popular music from 1900 to the present day, including jazz, country, folk, rap, reggae, techno, musicals, and world music."
Norton/Grove dictionary of women composers 1 volume. In print.
Included in: Grove Music Online
Biographical information on women composers.
Oxford Companion to Music (Online)
Brief articles on musical persons and subjects.
The New Harvard dictionary of Music / edited by Don Michael Randel
Cambridge, Mass. : Belknap Press of Harvard University Press, 1986
The Harvard Dictionary Of Music Cambridge, Massachusetts ; London, England : Belknap Press of Harvard University Press / Fourth edition., 2003
Online. Brief definitions of music subjects.
The Oxford Companion to Music and the Oxford Dictionary of Music include articles on musical persons and subjects. Part of Oxford Music Online.
Musical instruments:
The Grove dictionary of musical instruments 2nd edition. 2014. 5 volumes. In print.
Included in: Grove Music Online
Excellent source for articles on musical instruments. Good bibliographies.
Continuum encyclopedia of popular music of the world. 12 volumes. In print.
Garland Encyclopedia of World Music 10 volumes with accompanying CDs
Garland encyclopedia of world music. (Online version; includes audio.)
Volume 1, Africa
Volume 2, South America, Mexico, Central America, and the Caribbean
Volume 3, The United States and Canada
*Volume 4, Southeast Asia
Includes Indonesia.
*Volume 5, South Asia, the Indian subcontinent
Volume 6, The Middle East
Volume 7, East Asia : China, Japan, and Korea
Volume 8, Europe
Volume 9, Australia and the Pacific Islands
*Vol 10, The world's music,: general perspectives and reference tools
This encyclopedia has a wealth of good information, but article arrangement is not typical. Coverage in sections entitled "Issues and Processes" is not clear. Begin by using the index in each volume as well as the general index in volume 10. Also use the subsections in the Table of Contents at the front and the index at the back of each volume.