On April 24, Ramona Hocker and Klaus Kuchling gave an interview with Christoph Wellner in the Rubato Studio of Radio Stephansdom Klassik, providing insights into the project work from the sources to the interpretative elaboration to the staged performance. In addition, first rehearsal recordings could be heard. 
The interview can be listened to online for one week in the radio library of Radio Stephansdom Klassik: https://radioklassik.at/programm/sendungsformat/12895/