Producer - Recording Studio, Film, TV, and Radio
The producer brings together the various elements of a recording and works to present them as an artistic 

Film Composer
A film composer scores music to accompany a motion picture film. This could include dramatic underscore as well as popular songwriting. The traditional role of a film composer is to provide the orchestral
dramatic underscore, and only more recently has the popular soundtrack begun to stand on its own.

Music Editor
A music editor is responsible for mixing and synchronizing the music with the film, and mixing the music with the film soundtrack. The music editor must be versatile, and possess a great musical sensitivity, a keen ear for balance, and awareness of how music can make or break a scene, all combined with a knowledge of the
special technology used in synchronizing music tracks to film or tape.

Music Supervisor/Director
The music supervisor/director is hired by the film producer. He/she may act as an A&R scout to find popular songs for the soundtrack. Sometimes he may be in charge of only the songs for the soundtrack, and other times he may be in charge of all the music involved with a film, including hiring and supervising the film
composer for dramatic scoring.

Other jobs
Film Arranger/Adapter
Film Conductor 
Film Music Orchestrator
Synthesis Specialist (film/video)
Theme Specialist