Xenakis: So what does a wiggly line sound like?

Trombone graphs, music that morphs into forests – two artists redraw Iannis Xenakis's aural vision in a one-off concert and installation. Tim Rutherford-Johnson looks and listensThere is a photograph, taken in the late 1970s, of Iannis Xenakis demonstrating his newest innovation to three schoolchildren. As the composer stands in front of a chunky microcomputer, mysteriously hooked up to a large architect's drafting table, a small boy cheekily reaches up to touch the keyboard. The grinning Xena...

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