In the age of Google, researching seems easy, but academic research looks far beyond Google. It looks to subscription resources that are provided by the library. It looks to a combination of physical and online resources. There are many types of sources that will help you with your research. The infographic below describes the research process, including the types of sources you may wish to consult and where to find them.
You've found some good background info. So now what?
Look at the bibliographies of the articles you have found. These are going to be some of the best sources on your topic. Try looking for these sources. Tip: Look for books and known journal articles in the Catalogue.
If you don't find what you're looking for, ask a full-time Music Library staff member for help.