“Klever Kaff or The Lass from Blackburn, originally a telephonist then pianist who yearned to sing, combined two things: the personality to communicate with the widest audience, and encourage them in great music, with world-class artistic quality. Bruno Walter, Mahler’s pupil, said: The greatest thing in music in my life has been to have known Kathleen Ferrier and Gustav Mahler-in that order” (MusicalMerit)
