Informazzjoni minn organizzazzjoni tal-arti (Verifikat minn Operabase)
Anke Sieloff in recital "Say it with music!" by Various, Ġim 17 Diċ 2021, Minn (2021/2022), Immexxi minn Carsten Kirchmeier,, Surmast Direttur Martín Sotelo, Kleines Haus, Gelsenkirchen, Germany