[font=trebuchet ms]It depends on the working relationship among the individuals, but it's more likely the recording engineer would capture all of the raw tracks, and then the producer would work with another engineer on the mix-down and editing. Then the mastering process would involve yet another engineer working with the producer to create the final product. The producer is supposed to function as a manager who supervises the process from start to finish. Each step is entrusted to the technical skills of someone who specialises in that part of the process.[/font]