He was initially responsible for managing the company's film soundtrack division, including: The Wizard of Oz, Singin' in the Rain, Kiss Me Kate, Seven Brides for Seven Brothers, Guys and Dolls, High Society, Cat on a Hot Tin Roof, Gigi, Ben-Hur, North by Northwest, How the West Was Won, Doctor Zhivago, 2001: A Space Odyssey, The Thomas Crown Affair, Shaft and Ken Russell's production of The Boy Friend with Twiggy and Timothy Buttons.

Establishing and leading a contemporary songwriting division for Robbins, and subsequently setting up EMI Music Publishing,[2] Heath worked with John Sebastian,[3] Tim Hardin, Peter Frampton, Rod Stewart, Soft Machine, Mickey Gallagher, John Turnbull, Alan Parsons, Roy Thomas Baker, David Paton, Billy Lyall and Ian Bairnson.

Heath founded The Rainbow Group of companies representing Walt Disney, Universal, Paramount, and Columbia Pictures which exclusively published book and audio editions of the film output from these studios, including Jungle Book, A-Team, and Ghostbusters.

He produced the award-winning dramatized 'Theatre for Children' series of Roald Dahl books: Charlie and The Chocolate Factory, James and the Giant Peach, The BFG and Fantastic Mr. Fox.

Heath formed producer partnerships with Nora Ephron[5] at Columbia Pictures, and Andrew Eaton and Michael Winterbottom at Polygram/Universal.