    Seritencé 4: In what episode did Dudley Simpsori  play a music conductor?    Senténce 2: “Ihé’ «most " frequent ” musical  contributsr during thé firse 15 yearg was Dudley  Simpson, whio is also-well known for his theme  and incidental’ music-for Blake's 7: and-for his  hatuintiing chemie music and score for the-original  1970s version of The Tomorréw, People.    