The online version of Oxford Music Online contains the New Grove Dictionary of Music and Musicians, which is a great place to start your music research!
The same resource also includes the the Oxford Dictionary of Music, New Grove Opera, New Grove Jazz, and the Oxford Companion to Music.
Search for broad categories: composer name, genre, city, etc.
These tools are specifically for vocalists and their collaborators, provide by the Furman Libraries. Please contact the library research assistance desk or the music librarian for Schubertline login information.