j0ris writes "The Klingon are passionate opera-lovers, but little is known about their highly evolved form of musical expression. Floris Schonfeld is the initiator and director of 'u', the first authentic Klingon opera on earth. He studied Klingon music theory for over a year, and together with several experts developed various indigenous Klingon instruments. The Terran Klingon Research Ensemble has been set up to further develop a coherent Klingon musical practice amongst human musicians. 'u' premieres on September 9 in The Hague, Netherlands. An invitation by Klingon language expert Marc Okrand has been sent to Kronos, home planet of the Klingons, via radio telescope."