Playing music is always important for the Soul. Doesn't matter if everything is perfectly on time, or always on key. I feel that some of the most important expression comes from just raw sound output with not much consideration to formality or structure.
This is sort of the way my Pops and I jam together. Morphing from abstract to dub, prog rock... whatever, I'm not much about labeling sound. So! He has a modest drum kit and I bring over a selection of my set up. Includes a bunch of midi controllers, a synth, laptop, external sound card and a TON of cords. It's forever a moment of victory when all is connected, putting out sound and recording fairly clean. Here is a drum piece of a epic session we had going this evening. Just might have to go on tour soon! :)