Library of Congress
Loc: The Moldenhauer Archives
The Moldenhauer Archives at the Library of Congress contain approximately 3,500 items documenting the history of Western music from the medieval period through the modern era.
Other
Baroque Composers and Musicians
This website provides a listing of some of the prominent composers and musical personalities of the baroque period. Those underlined as links will take you to a short biographical article on that particular composer.
Other
Use of Vibrato in Baroque Vocal Music
As the title indicates, this site focuses on Baroque vibrato. The thoroughness of the research is impressive, yet it reads easily and is not difficult to absorb.
Northern Arizona University
Northern Arizona Univ.: Symmetrical Binary Principle
This site from the Northern Arizona University contains the meanings of the symmetrical binary principle in Bach's music and several other composers of this period.
Other
Hildegard Publishing Company: Antonio Bembo
A paragraph of biographical information on Antonio Bembo, a female composer of the Early Baroque period.
Other
Hildegard Publishing Company: Rosa Giacinta Badalla
Provides biographical information about Rosa Giacinta Badalla, a composer of the Early Baroque Period.