John Williams - Lost in Space Theme

As George Martin described it, 'To be accepted by the film people entails having film credits. You have to go from one success to another, and that means doing nothing but film music. John Williams is a good example. He wrote the music for Jaws, followed that with Star Wars, and followed that with Close Encounters of the Third Kind. He gets offered more film work than he can possibly handle, so he does nothing else.'