mezzo-soprano, tenor, guitar
Edith Guillaume and Ingolf Olsen
Copenhagen, Statens Museum for Kunst, 12 March 1972: Edith Guillaume, mezzo-soprano / Ingolf Olsen, tenor and guitar
Edition Wilhelm Hansen
Sub Rosa, together with 'Wenn die Rose ...' (1971), was used for the ballet 'Skjultesteder' by Maria Lalander; premiered on November 21, 1980 in Copenhagen.
Secretariat for Contemporary Music website;