Ballet in one act with choreography by van Dantzig, music by Ligeti, and design by van Schayk. Premiered 26 Jun. 1969 by Dutch National Ballet at Stadsschouwburg, Amsterdam, with G. Wijnoogst, van Schayk, and C. Geldorp. This setting of Ligeti's Atmosphères and Volumina deals with failures of communication in modern urban society. It has been revived for Munich Ballet (1972).