Upplýsingar frá listasamtökum (staðfest af Operabase)
Seventh Orchestral Concert – Vienna Philharmonic, Stanislav Skrowaczewski by Lutosławski, Chopin, Dvořák, Frá (1968/1968), Hljómsveitarstjóri Stanislav Skrowaczewski, Kleines Festspielhaus, Salzburg, Austria