A music producer is someone who makes sure that when recording a song or making a record, the end result is as good as it can be. He or she will make sure that a song is well produced and well recorded. It may mean giving the band or singer advice when it comes to certain aspects of their performance, or making sure the engineer is doing his job the best way possible.
A music producer understands every aspect of studio production, and is well-rounded when it comes to how instruments and voices produce recordable sound. The job may be as passive as merely listening and nodding approval, or as involved as placing microphones properly and even running a soundboard. A music producer is much the same as a director in a film, overseeing each and every detail with the hope of producing a potential hit.