Michael Ondaatje said this quote

But there was a discipline, it was just that we didn't understand. We thought he was formless, but I think now he was tormented by order, what was outside it. He tore apart the plot - see his music was immediately on top of his own life. Echoing. As if, when he was playing he was lost and hunting for the right accidental notes. Listening to him was like talking to Coleman. You were both changing direction with every sentence, sometimes in the middle, using each other as a springboard through the dark. You were moving so fast it was unimportant to finish and clear everything. He would be describing something in 27 ways. There was pain and gentleness everything jammed into each number.