‘It’s all about very subtle variations’
Cees van Woerkum professor of Communication Strategies, plays his flute for an hour a day. He cannot get by on less than that - he counts his flute among his basic needs. 'It keeps me balanced.' It looks such a simple instrument: just a tube with holes in it. But it is surprisingly tricky. 'A bit of tension in your lips and the music's lost. It's very delicate. And every day is different.'