The document discusses the major record labels and their market shares from 1998-2012. It notes that originally there were six major labels ("Big Six") but that consolidated to five ("Big Five") after mergers. The current "Big Three" major labels are Universal Music Group, Sony Music Entertainment, and Warner Music Group. Universal is the largest, Sony is middle sized, and Warner is the third largest. The document also provides brief descriptions of each major label and their signed artists. It defines independent labels and provides Rough Trade Records as an example of a successful independent label.