Enhanced online version of the 29-volume print edition of the New Grove Dictionary of Music and Musicians, 2nd edition, also comprising the complete New Grove Dictionary of Opera. Contains scholarly articles on all aspects of music and includes links to images, digital sound, and related sites. Updated quarterly.

Also includes the Encyclopedia of Popular Music Online, the Oxford Dictionary of Music, and the Oxford Companion to Music.

Garland Encyclopedia of World Music Online

Index of Printed Music : Collections & Series (IPM)

RISM: International Inventory of Musical Sources
RISM (Repertoire International des Sources Musicales/International Inventory of Musical Sources) provides online access to RISM series A/II: Music Manuscripts after 1600.