Daphne Druijf (understudy) After graduating from the Sweelinck Conservatorium in Amsterdam as Teaching Musician, Daphne continued studying and graduated in 1991 as Performing Musician. During her studies she had lessons from Erna Spoorenberg and Kevin Smith. She also had masterclasses from Jardi van Nes and Robert Alexander. Daphne Druijf sang in Gianni Schicchiand together with Forum Filharmonic she sang in Gloria, by Poulenc.