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.
“We knew we did not want to record at Impulse Studios again, after the experience of recording in a 'real' studio in London for the Radio One session we did.”
“Philippians 1:21 is very special to me because it helps to keep my life centered.”