Opera in prol., 3 acts, and epilogue by Offenbach to lib. by J. Barbier and M. Carré based on stories Der Sandmann, Geschichte von verlorenen Spiegelbilde, and Rat Krespel by E. T. A. Hoffmann. Comp. 1877–80, but left incomplete at Offenbach's death (many numbers unfinished, sketches only of others). At f.p. the Giulietta act was omitted and Guiraud provided revisions, recitatives (in place of the correct spoken dialogue), and some of the orchestration. In 1893, Giulietta act was restored as Act 2, where it is placed in the largely corrupt Choudens edn. of 1907. New edn. by Fritz Oeser (1980) attempts to interpret Offenbach's final intentions, with acts in the order: 1. Olympia, 2. Antonia, 3. Giulietta. F.p. Paris 1881, NY 1882, London 1907. Famous Barcarolle, orig. written for Die Rheinnixen (1864), occurs in Giulietta act as orch. intermezzo before epilogue.