The Csardas Princess, premiered on 8 June 1946, was the eleventh premiere of the newly formed Székely Theatre in Târgu Mureş. The programme of the first season of this institution, which later clearly became an art theatre, was dominated by the works of Kálmán and Lehár. The genre of operetta, as well as The Csardas Princess, had an extensive stage history in the city. Miklós Tompa, one of the founders of the Székely Theatre, was certainly aware of the significance and popularity of the work both locally and in Transylvania. However, the genre of operetta was incompatible with his blunt aspirations, so it is no coincidence that Kálmán’s most famous operetta was only staged again almost seventy years later at the National Theatre of Târgu Mureş (by the Tompa Miklós Company, which plays in Hungarian). My paper analyses the 1946 theatre production from the perspective of the Philther method.