Without the lavish budgets of his earlier television series, it was apparent to Gerry Anderson from a very early stage of production that it would not be possible to record full orchestral scores for Terrahawks. However, the development of synthesised music had advanced considerably since the early days of the experimental 'electromusic' composed and recorded by Barry Gray for "Supercar" and "Fireball XL5", and by 1983 it was possible to create electronic music that could at least approach the scale and majesty of a full orchestra, but at a fraction of the cost.