Articles on composers, singers, teachers, and genres (opera, art song, vocalise, etc.). Composers' articles contain works lists -- handy for verifying titles of songs, first performances, and original keys.
Useful for finding information about Canadian composers (works lists), performers and venues. Available online as part of the Canadian Encyclopedia, through Historica Canada.
The German equivalent of Grove, this 27-volume encyclopedia provides in-depth articles on both musical subjects (Sachteil) and personalities (Personenteil).
Additional encyclopedias and similar reference books about opera may be found at call number ML102.O6.