Royal College of Music:
Singing a Song in a Foreign Land - online resource with oral history interviews, biographies and performance footage
Peter Gellhorn Project - AHRC funded exploration of Peter Gellhorn’s musical legacy
External resources and organisations:
LexM Hamburg University - Online encyclopaedia about musicians persecuted by the Nazi Regime
Forbidden Music Regained, Leo Smit Foundation Amsterdam
online resource from the AHRC funded project 'Performing the Jewish Canon'