An experiment with artificial intelligence at the annual Richard Wagner festival in the German town of Bayreuth has drawn boos from the audience after producing a staging that appeared to leave some spectators confusedFILE - Visitors walk the grounds of the festival opera house "Festspielhaus" in Bayreuth, southern Germany, on July 17, 2010. (Eckehard Schulz/DAPD via AP)FILE - Visitors walk the grounds of the festival opera house "Festspielhaus" in Bayreuth, southern Germany, on July 17, 2010. (Eckehard Schulz/DAPD via AP)FILE - Visitors walk the grounds of the festival opera house "Festspielhaus" in Bayreuth, southern Germany, on July 17, 2010. (Eckehard Schulz/DAPD via AP)FILE - Visitors walk the grounds of the festival opera house "Festspielhaus" in Bayreuth, southern Germany, on July 17, 2010. The festival website said that “every performance will be unique — because the images and associations never stand still.”