Hello, I am pretty new to GMC, and I have only been playing a year. I have not seen some of the stuff in the tablature that follows the videos. Example: L What he heck does 3 L 3 mean on any string? 12pbr? 12br? Is there a place that I have overlooked that can get me through these issues? Is this how the software Guitar Pro denotes slides, bends, etc.? I am used to the way Ultimateguitar.com does their tabs. Thanks