<p>These are two extremely helpful music theory links.
This one has examples of everything from triads to musical form, and has many exercises (even ear training!)
[teora</a> - Music Theory Web](<a href=“http://www.teoria.com%5Dteora”>http://www.teoria.com)</p>
<p>This one starts out more basic and does not get as advanced, but is still helpful for almost anyone.
[Ricci</a> Adams’ Musictheory.net](<a href=“http://www.musictheory.net%5DRicci”>http://www.musictheory.net)</p>
<p>Both of these can help greatly in preparation for an AP test, of more importantly theory placement tests for college.</p>