 Composer Trevor Jones (I) (qv), originally hired as the sole  musical talent, wrote most of the music for the finished film but  left the project before it was recorded due to creative differences  with director Michael Mann (I) (qv). Mann then called in  Randy Edelman (qv) to finish the scoring and to edit and record  Jones portion. Edelman, in charge of the soundtrack production,  made sure his half and Jones half were indeed separate and easy to  tell who wrote which.