Hey guys, I've been playing for several years now... and I'm at a stage where, I'd say i was fairly decent and will be able to play in an impromptu band and sound pretty good. What I'm questioning is my lack of theory and "direction" in playing. I've been playing out of feel and experience which is know is great, but i lack the theory behind "why" i play those notes and why they sound as good as they do. I'm talking about using lots of different scales, and understanding them. Using the different modes and being able to speak in that sorta "use the 7th note, or the minor of that chord" lingo to other band members. I'm really hoping to get some theory lessons this year but it's pricey and as a fulltime student overtaken by GAS, it's really hard to fund it. Is there any good resources out there that'll really help me grasp the concept of 'guitar and music' theory to what i need to know?