Tim Souster, 26 March 1992
One of my fondest memories of the two years I spent as Stockhausen’s teaching assistant was observing him direct two unfortunate locals on tall ladders as to the precise positioning of the coloured lights on a gigantic Christmas tree which had been planted on his estate at Kürten, outside Cologne. This was all taking place in a high wind to which Stockhausen (KS) was completely oblivious. The lights had to be perfect and they had to have an architectural structure. It even crossed my mind that he might have been working according to the Fibonacci series.