Databases

Garland encyclopedia of world music online (Alexander Street Press)

The integrated online version features thousands of pages from the print edition authored by 700 international contributors along with associated audio tracks, musical illustrations, photographs, drawings, song texts, score examples, and charts and maps of world regions. Allows cross-cultural and comparative music research through controlled vocabulary indexing and other enhanced features.

Grove Dictionary of Music SEE Oxford Music Online [Full Text]

This is the standard dictionary for music and includes hundreds of carefully selected and classified links to musical sites around the world and a timetable of reviews.