Chronicle of Dutch Music
On the Choorstraat in Utrecht, near number 25, there is a memorial stone that carries the following text: ‘Zuster Bertken lived here as a hermitess, bricked into a wall niche in the choir of the Buur Church 1457-1514’.
Robert Zuidam. Suster Bertken.
Katrien Baerts, soprano.
Hubert Claessens, baritone & baritone saxophone.
James Dugan, boy soprano.
Leopold Benedict, countertenor.
Asko/Schoenberg Ensemble conducted by Reinbert de Leeuw.