Complete Piano Theory Course! In this video I want to show you so many important things about playing the piano. You see, music theory, and piano theory especially is super important when playing the piano. Yes, it can be a little boring, if you just learn the piano techniques, however once you apply those piano skills to your playing, you will notice an immediate increase in understanding your piano, also, being able to play more advanced piano pieces. This video have gotten close to 1 million views, and countless thumbs ups, I'm sure you will love it as well!