EMI The Electric & Musical Industries Group is a British music company. It is the fourth-largest business group and family of record labels in the recording industry
SONY Sony Music Entertainment is the second-largest global recorded music company of the "big four" record companies and is controlled by Sony Corporation of America, the United States subsidiary of Japan's Sony Corporation.
UNIVERSAL Universal Music Group is the largest group of record labels in the recording industry. It is the largest of the "big four" record companies by its commanding market share and its multitude of global operations. Universal Music Group is a wholly owned subsidiary of international French media conglomerate Vivendi.
WARNER Warner Music Group is the third largest business group and family of record labels in the recording industry. The current incarnation of the company was formed in 2004 when it was spun off from Time Warner, and as a result, Time Warner no longer retains any ownership, despite the name.
This image was sourced from wikipedia and shows the largest 30 music exporting countries in the world (that dominate 95% of the worldwide music industry) and their music sales by proportionate sizes.
The pie chart shows world-wide music market sales shares (sourced from IFPI)
Outside of the 'big four' there are thousands of independent labels, as well as millions of unsigned artists. However, the music industry also encompasses a variety of other areas, from music publishing to concert promotion, management and media.
