Sara Mohr-Pietsch introduces a concert given in February as part of the Lancaster International Concert Series, to celebrate the work of Claude Vivier, the highly regarded but little-known Canadian composer who was murdered in 1983 at the age of 34. With contributions from music writer Paul Griffiths. BBC Singers Psappha Nicholas Kok (conductor) Vivier: Et je reverrai cette villa etranger; Glaubst du und die Unsterblichkeit der Seele; Journal.