Upplýsingar frá listasamtökum (staðfest af Operabase)
The Friend Fritz by Mascagni, fös 01 júl 2011, Frá (2011/2011), Leikstýrt af Annilese Miskimmon, Matthias Janser,, Hljómsveitarstjóri Stuart Stratford, John Gibbons, Holland Park Theatre, London, United Kingdom