As the description above states, Oxford Music Online (OMO) is a database that serves as a portal to access encyclopedias and dictionaries on a wide-range of music topics, terms, and musicians. OMO is a great first place to start your research to obtain an overview of a topic.
Type of Database
Combination of encyclopedia and dictionary
Grove Music Online; Oxford Dictionary of Music; Oxford Companion to Music
Useful for finding background information, understanding terminology, and bibliography citations to find more resources