Music Notation Software Music Theory Online New Music Jukebox (American Music Center) Score Scan Texts on Music in English
The database will eventually comprise all relevant manuscript and printed materials written in English from the Middle Ages through the seventeenth century.
Thesaurus musicarum latinarum
(from Indiana University) (TML) is an evolving database of the entire corpus of Latin music theory written during the Middle Ages and the Renaissance.
Vermont Composers' Consortium