His early works show the influence of his interest in the music of Indonesia, as well as American modernists such as Milton Babbitt and John Cage.
Late in the 1950s, he concentrated on works depicting what he referred to as the 'brutalist' aspects of urban civilization, but by the 1960s had returned to a more lyrical style.
He became more interested in rock and pop music after a 1965 trip to England to work on urban planning.
He set some poems by Vin Buckley to music for soprano and orchestra, as Golden Builders.
Ten days before his death, he was awarded an Honorary Doctorate in Architecture by the University of Melbourne.