if you want to be a good guitar player, you must not over look the word phrasing. Phrasing is the same method that we humans use in talking. It is also the same term used for playing guitar solos. Only that instead of words and tone and accent, we have dynamics, notes and expressions. Intermediate and advanced player often overlook this subject because they feel that it is not important as long as you know and master all the guitar techniques but that is definitely wrong. Expression comes out of good phrasing; it’s like making your guitar talk or express emotions. This is perfect for playing blues guitar since blues is full of emotions and drunken drama.
Techniques are only there to emphasize the emotions that are conveyed thru phrasing. I would like to emphasize the need to practice phrasing if you want to do sensible guitar solo improvisations, not just running around with notes and speed, though that is impressive, nothing impresses me more than a good phrased guitar solo which is full of emotions, as if its telling me something or making me feel something. BB King is the bomb when it comes to this subject. Also, you could check out John Mayer, he’s got great talent on phrasing.