Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Kölner Akademie / Michael Alexander Willens by Johann Wenzel Kalliwoda, Kreutzer, C., Crusell, Wilms, Beethoven, Ġim 08 Fra 2019, Minn (2019/2019), Surmast Direttur Michael Alexander Willens, NOSPR, Katowice, Poland