Harmonix Music Systems

Harmonix is a game developer specializing in music games. They are based in Cambridge, Massachusetts. They have developed a reputation as innovative game designers after working to make music accessible to game-players, and have developed a cult following with the release of Frequency, Amplitude and their latest release, Guitar Hero.

On September 22, 2006, it was reported by the New York Times that Harmonix would be bought out by cable television giant, MTV. Harmonix was purchased for $175 million.

Games developed
They have developed the following games:
 * Amplitude
 * Amplitude: P.O.D. Special Edition
 * EyeToy: Antigrav
 * Frequency
 * Guitar Hero
 * Karaoke Revolution
 * Karaoke Revolution Party
 * Karaoke Revolution Vol. 2
 * Karaoke Revolution Vol. 3
 * Karaoke Revolution: Kids Song Selection
 * Rock Band
 * Rock Band 2
 * The Beatles: Rock Band
 * LEGO Rock Band