Personally, I've found one of the more stimulating ways of playing in recent times has been to kind of move outside the free improvised area and work with people who are probably improvisers but they have a particular way of working.
“I have not been that wise. Health I have taken for granted. Love I have demanded, perhaps too much and too often. As for money, I have only realized its true worth when I didn't have it.”
“I see no room in holy Scripture for any sexual activity outside of matrimony.”