To find books on your topic, go to the Library Website at http://www.mnstate.edu/library and see the "Guide to Call Numbers" on the Home page of this guide.
Do an "Advanced Search" in the Library Catalog.
Here are some sample searches to do in the cataglog to help you get started (all you need to do is to cut and paste these searches into the search box):
Jazz -- Instruction and study -- performance and composition
Some related styles:
Big band music