Yeah, its called stereo, and different artists / mixers do the stereo effect differently depending on the material, and how the want it to stage. In stereo two different tracks, usually mixed down from however many musicians and instruments there were to be recorded. The sum of both mixed down tracks, each played from either the left or right speaker comprise the work when played, and form a sort of three dimensional soundstage. Sometimes the engineer will opt to put the vocal performer more or less to the right or left, depending on his own lights. It is an interesting process, and one you could read up on, or follow at any recording studio, most of which accept students by the way.