We have recorded this documentary in a though time, during Covid. Our theatrical shots were filmed in Slovak National Theatre in Bratislava and in Vienna Satte Opera. It took us 4 months of intense communication with Wiener Staatsoper to get the permission to film there. Only in these cases, one can truly understand how do the big opera houses work. We have managed to reach out to a great star of Vienna Opera- Kurt Rydl, as well as world class soprano Gabriela Beňačková. . Other film days took place in Bratislava and Piešťany