Grove's Dictionary of Music and Musicians

From Wikipedia, the free encyclopedia:

The Grove Dictionary of Music and Musicians is an encyclopedic dictionary of music and musicians and is regarded as the most authoritative reference source on the subject in the English language. Along with the German-language MGG, it is the largest Western music reference work. Initially released through the vision and toil of George Grove, it was brought to a new height by Stanley Sadie and is the leading music reference source in English for both encyclopedic information and bibliographies.

Wikipedia article: Grove Dictionary of Music and Musicians