Music  

-Grove Music Online -- A wonderful place to begin your research. Make sure to check the bibliography for further research. Contains The New Grove Dictionary of Music and Musicians, The New Grove Dictionary of Opera, and The New Grove Dictionary of Jazz. Print editions of Grove Music Online materials are also available in the music reference area:

• Grove Dictionary of Music and Musicians Music Ref ML100 .N48 2001
• Grove Dictionary of Opera Music Ref ML102 .O6 1992
• Grove Dictionary of Jazz Music Ref ML102 .J3 N48 1998
• Grove Dictionary of Women Composers Music Ref. ML105 .N38 1994

-Oxford Dictionary of Music

• Also available in print: Music Ref - ML100 .K35 1994

-Credo Reference -- Contains:

• Continuum Encyclopedia of Popular Music of the World: Locations,
  
• Continuum Encyclopedia of Popular Music of the World: Media, Industry and Societ
• Continuum Encyclopedia of Popular Music of the World: Performance and Production
• The Faber Companion to 20th Century Popular Music
• The Harvard Biographical Dictionary of Music
• The Harvard Dictionary of Music
• The New Penguin Dictionary of Music.

-Gale Virtual Library -- Contains:

• Baker's Biographical Dictionary of Musicians 
• Baker's Biographical Dictionar of Popular Musicians Since 1990.