This reminded me of a show I saw one time. He (George Martin) had a short-lived show where he would go and visit famous music celebs. One I saw always stuck with me. He went to visit Brian Wilson. They were sitting in Brian's studio listening to one of Brian's songs. (I'm THINKING it was "Good Vibrations", but it might have been something else.)
Anyway, George asks if Brian would mind if he fiddled with the mix on the board a bit. Of course Brian said, "Have at it!"
After about 30 seconds, Brian had a dumbfounded look on his face. Finally, he said something like, "Damn George, I worked on that mix for a LONG time. You come in here and mess around for 30 seconds and it sounds MUCH better than I had it!"
And that from one musical genius to another!