Books typically cover broad topics, which make them especially good for in-depth or background information. However, there is a kind of book common in music research known as the collected work or, if created in someone's honor, a festschrift. These books usually have multiple authors and an editor. The individual chapters are often more similar to scholarly articles than books.
Below are examples of different kinds of books you can find at Rod Library.
Biographies and other books about a person or musical group can be found in the call number range ML410-421. Composers are in the ML 410s. Individual performers are ML 420. Bands are in the ML 421s.