A gramophone recording of the aria «Dein ist mein ganzes hertz« (You Are My Heart's Delight) was released and became famous even before the premiere of the operetta The Land of Smiles on 10th October 1929 at the Metropol Theater Berlin. The audience then flocked to the theatre to enjoy its live performance, and the contemporaries wrote that The Land of Smiles was the first operetta in history where every piece of music became a hit.