Grove music online

Offers the full texts of The New Grove Dictionary of Music and Musicians, 2nd Edition (2001), The New Grove Dictionary of Opera (1992), The New Grove Dictionary of Jazz, 2nd Edition (2001), The Oxford companion to Music (2011), and The Oxford Dictionary, 2nd Edition (revised 2006), as well as all subsequent updates. It includes 50,000 signed articles and 30,000 biographies. It is the most comprehensive source of information on all aspects of music in English.