Jarrett comes on the day of the concert in the Cologne Opera to the wings and to check the acoustics and finds a Instument that does not meet the requirements of the Master. He refuses to play it and so is trying to organize a suitable wing under time pressure. This, arrived at the opera is, however, not to bring through the door. Jarrett, very nervous Diva, will then cancel the whole concert without further ado. In the taxi on the way to the hotel, it is possible tearfully said organizer Jarrett retune. The failure of the concert would have been a disaster for them. This allows the pianist so soften and tells her: ". But today I play just for you"
So he plays on that evening this concert, which has long since become a classic of jazz improvisations.
And I suspect precisely because Keith Jarrett had this concert and this recording already written off in his perfectionism, he could play so freely and without restraint. The wing does indeed sound quite harsh and tinny, but this concert everything had to be so - even the bad sound of the instrument!
You can learn from the fact that sometimes just emerges the miracle of the moment from the imperfect and leads to perfection. And a miracle is The Köln Concert unquestionably for the hearing can.