1940, music historian, organist and composer, read Music and English at the University of Wales, Bangor, earning a B. Mus., M. Mus., and Ph. D. He has taught at University College of Wales, Aberystwyth, The Open University, Liverpool University, and the Norwegian Academy of Music, Oslo, covering harmony, fugue, orchestration and composition as well as historical and analytical topics. He was organist of Kroer Church in Ås for twenty-five years from 1981. His compositions have been published in Great Britain, Switzerland and Norway. In 1993 he was elected a member of the Norwegian Academy of Science and Letters.