In this article Jimmy Hudson discusses how to know what key you are in and how to stay in key.
There is no mystery in modes or theory at all. There are seven tones to the major scale hence there are seven modes to the major scale.
For anyone who has ever asked why do I need theory? Here is the answer. Music is a language that lets other musicians understand what you are talking about.
Technique could be the single most important part of learning any given musical instrument. In this lesson Jimmy Hudson talks about how he approaches technique.