If your topic is interdisciplinary, or if you want context for your topic outside of the music world, you should consider using a non-music-specific journal database. The University subscribes to hundreds, covering just about every subject. Here are a few suggestions. For databases from the Ebsco vendor you can choose to search them simultaneously.Humanities and General
UIUC also subscribes to many historic newspaper files (e.g., The London Times) which can have concert reviews and other contemporaneous accounts of 19th century composers and their music.
(Acoustics, physics of music, computers in music, etc.)