The music industry is dominated by four major record labels - Sony Music Entertainment, EMI, Universal, and Warner. These "big four" control over 70% of the global music market and operate as an oligopoly. As large conglomerates, the major labels have numerous subsidiary companies that deal with niche genres and can cross-promote artists across different divisions. Independent labels specialize in particular genres and may cater to smaller audiences, but offer artists more creative freedom and control over their careers compared to major labels.