 A lot of works leading up to the first part of the 20th century were heavily influenced by the folk music of other countries (Percy Grainger's "Country Gardens" of 1918 being a good example of this) and a very conservative British orchestral tradition.In the war and post-war eras, as pressure built to assert a national identity in the face of the looming superpower of the United States and the "motherland" Britain, composers looked to their surroundings for inspiration.John Antill and Peter Sculthorpe began to incorporate elements of Aboriginal music, and Richard Meale drew influence from south-east Asia (notably using the harmonic properties of the Balinese Gamelan, as had Percy Grainger in an earlier generation).