Listed below are the letters and titles of the main classes of the Library of Congress Classification. Click on any class to view an outline of its subclasses in an interactive PDF format. This list is based on the Library of Congress Classification Outline.
B -- Philosophy, Psychology, Religion
C -- Auxiliary Sciences of History
This list is based off of the Library of Congress Classification Outline.
Below are key reference books that provide a general overview of a topic or help identify synonyms, related terms, or basic data. These sources often include references and lists of further readings.
The New Grove Dictionary of Music and Musicians by 
The Oxford History of Western Music by 
The Garland Encyclopedia of World Music by