davies also wrote a number of lighter orchestral works such as "mavis in las vegas" and "an orkney wedding, with sunrise" which featured the bagpipes and was played at the last night of the proms in 1992 (with a bottle of whisky being passed round). he also wrote music for children including the operas "a selkie tale", "the great bank robbery" and "the spider's revenge", and film music for ken russell's films "the devils" and "the boy friend".