Grove Music Online
Comprises the full text of The New Grove Dictionary of Music and
Musicians, The New Grove Dictionary of Opera, and The New Grove
Dictionary of Jazz. Contains articles on music history,
music theory and practice, musical terminology, instruments and
their history, and the music of various locations ranging from
continents to units as small as a city. Also contains biographies of
composers, performers and writers on music, as well as historic and
current figures associated with the art and business of music.