Darth Wong wrote:The barrier to doing well in music is usually skill, rather than understanding. It is a highly skilled art, of course, but it is not something where conceptual comprehension is generally an issue.
For that you need to turn to performers who improvise solos. Chord changes that change sometimes at the rate of once every half a second, the possible scales that can be used with each individual chord (just counting the basic choices are somewhere around five or six scales per chord), then figure in general theory knowledge, characteristics of melody, style, expression, theme/motive, tension, harmonies, leading tones, non-chord tones, rhythm, swing, added chord tones (+9, +11, flat 13, etc.), tempo changes, articulation--all of which have to be weighed, judged, disregarded or approved by the musician as the solo happens.
And not only does it have to happen that quickly, but at the same time you need to actually make it happen on your instrument. There are very few other fields that require you to be able to process so many aspects of the subject so quickly, while at the same time being judged, appraised, and critiqued while doing so.
And, taking into consideration that thought process goes on constantly in soloist's head for
every single chord of
every single solo, I'd say that an incredible amount of understanding is needed.