Upplýsingar frá listasamtökum (staðfest af Operabase)
Kölner Akademie / Michael Alexander Willens by Johann Wenzel Kalliwoda, Kreutzer, C., Crusell, Wilms, Beethoven, Frá (2019/2019), Hljómsveitarstjóri Michael Alexander Willens, NOSPR, Katowice, Poland