Ballet in one act with choreography by Robbins, music by Chopin, design by Joe Eula, and lighting by Thomas Skelton. Premiered 29 Jan. 1970 by New York City Ballet at State Theater, New York, with Mazzo, Verdy, McBride, Blum, Martins, and Moncion and pianist G. Boelzner. Robbins's setting of Chopin's piano nocturnes (Opp. 27, No. 1, 55, Nos. 1 and 2, and 9, No. 2) portrays the relationships of three couples, suggesting light and shades of emotion before all six dancers are united for a final ensemble. It is often considered as an extension to Dances at a Gathering, made the previous year. It has been revived for many companies including Royal Ballet (1973), National Ballet of Cuba (1978), San Francisco Ballet (1985), Australian Ballet (1985), Houston Ballet (1986), Paris Opera (1989), Bavarian State Ballet (2001), and Mariinsky Ballet (2009).