Last week I visited the Eco-Visionaries exhibition at the Royal Academy in London and, along with eight other visitors (numbers were limited each time) in a darkened room, watched moon jellyfish perform slow and hypnotic movements across a screen. How much can you draw in the dark? There is no pressure to draw perfectly, the darkness encourages a feeling of freedom of expression. Soon I will encourage workshop participants to draw sounds only, in complete darkness, and look forward to seeing the results.