Just as Pollock used the drip to meld process and product Richter 'found' and used the smudge and the blur to ravish the eye creating works of psychic and physical power.
In my cranky old age I actually prefer recording alone now on 'The Simpsons ' for example because I find that the director can just focus on what I'm doing and I can do a lot of variations. A lot of times when I record with a group I'll stay after class for another hour or two.