Description on Youtube:
The legendary piano piece 'Herma' by Iannis Xenakis from 1961, played by Martin von der Heydt
Concert recording from September 2009 in Düsseldorf, Bechstein Center, at the festival 'tasten 09'
Video installation by Jan Verbeek
Cutter Lilia Dornhof
see also www.tasten-duesseldorf.de/Tasten09.html