
Originally Posted by
JakeAcci
I might simplify things a bit, maybe assigning different 'levels' using my own experience and observations of others.
A huge factor is the influence of rock playing and rock "training" that is common for guitarists, and that's plays such a huge role in the problems guitarists face when starting to try to play jazz.
So, my take:
levels of improvisation in relation to modes, common progression for a modern guitarist, focusing on the relation to modes:
0 - knows nothing
1 - knows pentatonic (to play rock)
2 - knows major and minor scales but has a very hard time improvising melodically with them (probably because of lack of aural skills as well as a lack of vocabulary that uses those scales)
3 - learns a few modes but similar problems as #2, uses modes over modal vamps and rock songs
4 - can play melodically with modes, make logical, melodic statements
5 - develops an interest in jazz. Is faced with many ii V I progressions and is mentally stuck trying to assign a mode to each chord
6 - From this point, it seems people diverge in different ways. For me, I lept off from this point by getting into bebop and learning a lot of bebop vocabulary and completely eschewing chord scales/modes. For some, they take a more educated and logical approach to CST, probably combined with transcription, and learn to navigate chord changes passably. There are other pedagogical approaches as well, but we're talking about Jazz Standards here and all approaches to probably boil down to, like you said, looking more at key centers rather than modes for individual chords.
7 - From #6, we're talking about players who can play through tunes and have it sound "fine." From here there are obviously an infinite number of directions people can go, stylistically, technically, etc, so I feel good leaving it here. Again, this is ONLY in relation to an understanding of modes. Completely leaves out issues of taste, phrasing, rhythm, voicing, style, etc