The Tonhalle orchestra Zurich is preparing for the big celebration concert for the 75th birthday of its world renowned chief conductor David Zinman. Due to his high standards, Zinman demands a new cowbell player! The search is on and a variety of musicians and celebrities audition for the rare opportunity to join this world class orchestra. As usual in classical music the contenders play behind a curtain, so the jury of musicians will judge on what they hear, not what they see. The only contender who pleases the hyper critical ears of the jury is a Bella...a beautiful cow from Emmental, Switzerland.