Zotero provides the ability to save sources from catalogs, databases, and other websites with one click.
You can then organize and edit the citation entries, which makes it great for annotated bibliographies, research papers, and more!
The Citation Style Guide has plenty of information to help you better understand the citation style your professor is asking for.
Reference books are encyclopedias, directories, and other similar books designed for east access to information. They are handy and informative, so use them as a starting point for your research. It's a quick way to find out important names and events, get ideas for keywords to use in online searching, and get an overview of your subject.
The Garland Encyclopedia of World Music is one of the most highly regarded music research tools. All the articles are written by scholars with expert knowledge of the topics and edited by other scholars, so you can be sure that you're getting reliable information. The African American Music Reference and Classical Music Reference Library link you to more subject-specific research materials which you can search by keywords.
Reference materials can be great places to go for basic information about your topic. Here are some items available at Library that might be useful for your assignment. Note that these items must be used in the library only.