Around 3000 guests celebrated at the weekend "An Extraordinary Event" on the grounds of the old sewage treatment plant in Oldenburg. Under the motto "Raven is for everyone!" the visitors danced for three days to techno sounds between industrial halls, railway lines and sheet piling. "We are totally satisfied, we were sold out on Friday and Saturday," said Gesine Geppert, spokeswoman for the Freizeitlärm association as organizer. People were more cautious when asked and bought more day tickets. The festival featured 18 DJs and a performance group. Artists had designed the site and provided digital installations. There was already a techno weekend last year.