The monitor system enables each musician to hear what the other musicians are doing. The difference between a front of house (FOH) mix and a monitor mix is that the FOH mix usually is a stereo output to the left and right speaker stacks and the monitor mix is customized for each musician. The monitor mix provides information that allows each musician to stay in time and in tune. Sometimes, however, musicians become carried away with their monitor requirements and end up wanting a fully mixed version of the group with their own contribution the loudest.