American Music Resource
Searchable database of primary bibliographical and Internet sources for American music.
Columbia University Directory of Musicology Dissertations
Listing and abstracts for every successfully defended Columbia University musicology, music theory, ethnomusicology, and music history dissertation from 1986 to the present.
Digital Image Archive of Medieval Music
Archive of Early and Medieval music manuscripts and scores. Hundreds of scanned images available, with higher resolution ones for members.
Doctoral Dissertations in Musicology-Online
The site presents an index to dissertations-in-progress and a bibliography of completed dissertations reported since mid-1995, arranged under the traditional broad categories.
German National Discography
Listing of all 78RPM recordings made in Germany from 1890-1960.
Ircam - Georges Pompidou Center
Institute of Research and Coordination in Acoustics - Music.
Music Ontology Specification
A SourceForge project for organizing the main concepts and properties for describing music (artists, albums, tracks, performances, arrangements) on the Semantic Web.
The Keys of Atlantis
Chapter 1 of this book by Peter Wakefield Sault, that is concerned with the mathematical derivations of the western system of music, the Babylonian unit of rotation and the minute of time.
WWW Sites for Musicologists
Extensive collection of links.