Use Reference sources for:
Oxford Music Online includes the New Grove Dictionary of Music and Musicians, the most extensive and authoritative encyclopedia for music. Also includes the New Grove Dictionary of Opera, New Grove Dictionary of Jazz, Encyclopedia of Popular Music, Oxford Dictionary of Music and Oxford Companion to Music.
Note: there is a prominent “sign in” box in the upper left. If you see The College of New Jersey above that, rest assured that the database recognizes your computer as being part of the TCNJ subscription, and you have full access to the content. The sign-in box is actually for individual subscribers; just ignore it.
Oxford Performing Arts Reference Online -- includes Oxford's Companions and Dictionaries to the American Musical, American Theatre, Dance, Opera, Opera Characters, Opera Singers, Shakespeare, and Theatre and Performance.