I've been playing guitar for 50 years, and am a pretty fair blues/rockabilly guitar player.

Technique, which seems to be the argument here, is important, but touch is equally if not more important.
My response to JosterD would be to keep playing the melodies, learn modes, chord structure, and find and learn how to use the "blue" notes.

If 3D art and music have one thing in common, it would be that patience is your most valuable tool. :)