When improvising, focusing on linear technique alone yields what I like to describe as “ Notes in Succession”.
Whereas, utilizing a solid understanding of musical content plus the aforementioned technical prowess, yields what I might describe as “Melody”. The latter is the result of a mind and body experience.( Read more)
A would be improviser who prefers to merely practice scales and patterns, will certainly achieve the muscular memory of said exercises.
But,. think about this, when called upon to create a solo they will most likely regurgitate that which they have incessantly practiced. thus yielding notes in succession.
On the other hand; in order to embody the vocabulary of jazz more thoroughly it’s much better to know each and every note location without the aid of any pattern reference.
Now we have a real potential to utilize specific pitches, to create specific melodies that relate to the specific chords of any tune.
Andreas Segovia said, and I certainly agree, “Guitar is the easiest Instrument to play; but the hardest instrument to play well.”
So strive to play music with heart, mind and body!