23/07/2017
Working with Master Wolfgang Trommer
Castillo de Schnellenberg, Attendorn, Germany
"Working hard with Master Wolfgang Trommer, (qed). Honorable director of the Aachen opera (Aachen) Germany, correcting details of the program to sing for the opera gala at Schloss Schnellenberg"
Marco Antonio Rivera
"Great memory, together with the baritone John Janssen, Soprano Carla Maffioletti, Mezzo Olga Caspruk, after the general rehearsal. Ready for the concert of the opera gala in Schloss Schnellenberg"
Marco Antonio Rivera
