Please use this website to increase your knowledge and enjoyment of music! There are many fun approaches to learning music that you can experience on your own.
/ Theory / piano / instrumental
hoffman academy piano curriculum
Everything Music Theory
Please consider this free, online, piano curriculum. Mr. Hoffman does a fine job of showing you how to play piano. Learning piano will increase your overall knowledge of music and make you a better musician. These are video lessons. Recommended for all of my music students.
Musictheory.net is a website with many free activities that help you understand how music works. There are quite a few games under the exercise section.
The following videos cover many ideas. The first video is the easiest to understand and then it gets more difficult.