Keyword or subject search? Think of the keyword search as a "goin' fishin'" search to find the best subject that will help you find exactly what you need. Here are some searches that may pull it together for you quickly:
Subject searching will help you find books about a composer or a singer.
For example, a basic search for Schubert, Franz and choose Subject Heading from the dropdown search option.
Looking at the results screen, choose "Show more" from the Subject: Topic to limit your search further.
I chose the Subject:Topic "song cycles." Here's the result:
Notice that you have information on the items at FSU (availability, call number), but you can also choose the UBorrow option to request availalbe items from other libraries in Florida.