The producer must know how to identify and obtain the best performances from the individual members of the group. There is an assumption that, if it moves you, it can move other listeners. For the producer, trusting this emotional response is a quintessential function. The confidence to say, “I like this one,” is at the heart of a producer’s role. They apply the same critical function at virtually every stage of the recording process. From the decision that a particular backing track performance has the right feeling and energy, to the approval of a guitar solo, and the sound of the various instruments coming through the monitors, all come back to the producer, who must make that judgment.