AMG All Music Guide All genres and styles of music are covered, ranging from the most commercially popular to the most obscure.
Ethnomusicology University of Washington's links to music all over the world.
FolkLib Index Library of Folk Music links.
The MHN Instrument Encyclopedia Musical instruments from around the world.
Rhythmweb Links to information and music relating to percussion instruments.
The Symphony: An Interactive Guide Links and information about the great composers.