Where is a good site or book to learn and understand music theory?!

Question: Where is a good site or book to learn and understand music theory!?

Learning to play guitar, but know nothing about music theoryWww@Enter-QA@Com

Answers:

Try this link on music theory from Wikipedia!.

http://en!.wikipedia!.org/wiki/Music_theor!.!.!.Www@Enter-QA@Com

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