Gudrun Buhler Singer / Actress discusses: From Stage to Virtual Media, How Has Performance Changed? Gudrun Bühler at the Delaware Art Museum Concerts on Kentmere: Gudrun Bühler, Soprano November 20, 2014 @ 7:30 pm – 9:30 pm Gudrun Buhler is an internationally experienced singer and actress who shares her on stage experience to compare how …