The ensemble of the Slovenian National Opera and Ballet Theatre of Ljubljana (SNG Opera in balet Ljubljana) performs an extensive repertoire of classical and modern operas, ballets and concert works. Each season it gives approximately 150 performances, both at home and abroad. Its opera and ballet ensembles and orchestra have enjoyed successful collaborations with Slovenian and international artists and producers. The Theatre's most acclaimed international co-production projects of recent years include Faust, Aida, The Nymphs of the Rhine and The Love for Three Oranges, to name just a few.
The theatre building, constructed in 1892, has a varied history. At the turn of the 20th century it housed first the German Theatre (Nemško gledališče) and then the Provincial Theatre (Deželno gledališče). 1918 saw the establishment of the theatre's opera and ballet ensembles and orchestra, which, after the Second World War, began to tour outside the country and receive international acclaim.