Triptykon, for violin and string orchestra op.72 (1983); Concerto for cello and orchestra op.98 (1992); Orchestration op.68 of Arnold Schoenberg "Variationson a recitative " for organ op.40 (1941)
THOMMESEN O. Nordic Council Music Prize 1990: Gratias Agimus, for soprano and piano; Gjennom Prisme, for cello, organ and orchestra; Vaevet sf Staegler. En symfonisk sang for for sopran og strykere
Once upon a time .... - Estracts from: Der var engang, op.25; Renaissance, op.59 & Vikingeblod, op.50; Two Songs from Sage ved Havet, op.54; Silde ved Nat hin kolde
Works for organ: Idylle d'apokalypse, op.79 (1980); Sonata op.9 (1957); Concertino, op.17 (1959); Foresporgsler-Overtalelser, op.49 (1970); Julesorgen og-Glaeden, op.117 (1991)