Music

http://www.essentialsofmusic.com/
Essentials of Music. Overviews of the six main periods in music history - Middle Ages, Renaissance, Baroque, Classical, Romantic and 20th Century - including details of musical style, context and history can be found at this excellent site. Detailed biographies including Real Audio sound files and portraits, and a glossary, make this a splendid and easy to use resource.

http://library.thinkquest.org/15413/
Music Notes. This comprehensive site contains information on music theory, style, instruments and history. Suitable for music students of all ages and levels, you can take a break from studying and still learn by playing the musical word games or listening to extracts and trying to identify them. Neatly laid out and supported by a dense glossary and appropriate links.

http://www.themusicland.co.uk/
Musicland. This is the beginnings of a growing selection of among others GCSE music resources. In the GCSE section there is a useful glossary of terms, plus there are aural tests for singers or those learning an instrument, essay ideas, lesson plans and a chance for students to send in their own musical compositions.