A chamber theatre ("Kammerspiele") seats 120. The "Großes Haus" was opened on 6 October 1972 with Beethoven's "Fidelio", the "Kleines Haus" a day later with Gaston Salvatore's "Büchners Tod". Reinhard Febel's opera "Morels Erfindung" premiered on 6 November 1994. Jan Müller-Wieland's chamber opera in one act "Die Nachtigall und die Rose" was first performed in 1996, "Die Versicherung" after a play by Peter Weiss in 1999. From 2002 to 2006 the building was restored, with new technical and safety features. It was reopened with Leoš Janáček's "Schicksal" and "Lélio oder die Rückkehr ins Leben" by Hector Berlioz on 22 September 2006, and a day later Schiller's "Don Karlos". John Dew has been director of the theatre from 2004.