The expansive Margot and Bill Winspear Performance Hall has been recognized as one of the finest concert halls in the world. The hall's acoustics, designed by the internationally renowned Christopher Jaffe of Jaffe Holden Scarbrough Acoustics, Inc., are varied with ten acoustical curtains and three vertically adjustable clouds. The fully accessible Winspear Performance Hall, with seating for one thousand twenty five, features fixed seating in the orchestra and center balcony and flexible seating in six boxes. The hall, extraordinary in both acoustical quality and aesthetic design, hosts musical events ranging from Early Music to Jazz. Performances by the University of North Texas Symphony Orchestra and the University of North Texas One O'clock Lab Band have been broadcast nationally on HDNet, the nation's leading high definition network, from the stage of the Winspear Performance Hall.