I am not a musician, and thus my only knowledge of the field is based entirely on stereotypes and clichés. That being said, I suspect that music students have a different experience with their teachers than painting students do. I had a painting teacher who once told me that I had not captured the "character" of a still life I was working on, and then walked away. How many ways could a student interpret that? The music teacher on the other hand has a set of universally accepted terms to draw upon, such as tone and pitch. There is a non-subjective vocabulary in music.
These differences continue in the post-teacher portion of learning and existing. I've always found that musicians tend to congregate more easily than painters. This is of course in part due to the nature of the mediums. Both musicians and painters practice alone, but a musician's eventual goal is to play with other musicians, in everything from a garage band to a symphony orchestra. The same can be said for actors, who even form their own labour unions. The painter's experience, in terms of relating to other painters, is quite different. The painting above, oil on plywood, about 10 by 11", was the last painting I did as a student. Consequently, it was also the last time I painted with other painters, and quite possibly the last time I ever will.