sentences:  He retraced Freud's footsteps and explored his realms through his homes in London and Vienna (both now museums), as well as literary sources including Freud's classic cases, whose real identities he concealed by use of names such as Wolfman, Ratman, Dora, Little Hans, and Schreber, the Judge.In addition, Freud's writings on his discovery of the 'unconscious', his well-known theories such as the Oedipus Complex, the 'Ego' and the 'Id' and perhaps his best known work, "The Interpretation of Dreams" all served as springboards for musical ideas.About halfway through the recording process, Woolfson was approached by Brian Brolly to develop the concept still further into a musical.