The Gramophone Archive

Since April 1923, 1039 issues of Gramophone Magazine , the brainchild of the novelist and writer Compton Mackenzie (of Whisky Galore fame), have been produced, and now every one is available to read online for the very first time at www.gramophone.net, the world’s largest classical music archive.

Library of Congress Performing Arts Encyclopedia

The PAE provides information about the Library's unsurpassed collections of scores, sheet music, audio recordings, films, photographs, and other materials.

IMSLP/Petrucci Music Library
Free sheet music downloads of major repertoire

Intute: Music

Helping you find the best educational websites for study & research

Hyperion Records
Extensive programme notes

Classical.net
Good general reference site for composer biographies, repertoire and much more

Allmusic.com
Good general reference for music history, genre focus, biographies, etc.  Also good blog.

Dolmetsch Online
Good Musical dictionary, theory tutorials, history reference and information about the physics of music

TonalityGuide.com
Comprehensive harmony and analysis tutorials with sound files and musical examples

Virginia Tech Multimedia Dictionary
Multimedia musical dictionary, each definition is supported by audio files.

CHICO Instrument Encyclopedia
Instruments from around the world expained with sound clips.

Essentials of Music
Glossary with audio clips

Naxos Glossary of Classical Music
Glossary and links to other information about Classical Music to support their recorded catalogue

Glossary of Musical Terms
Simple Glossary

Cadenza.org Glossary
English, French, German, Italian or Serbian Musical Glossary

Online Music Dictionary
Free dictionary of musical terms

Classical Almanac
Every significant date in Classical Music History