Quadraphonic sound, or 4.0 surround sound, utilizes four audio channels connected to four speakers positioned at the corners of a listening space. The multi-tracked audio is mixed dimensional, immersing the listener in an expansive soundscape. The 1973 Billboard Album of the Year, WAR's The World Is a Ghetto, saw the group leaning towards a progressive soul and jazz sound. The record housed the gold-certified tracks "The Cisco Kid" and "The World Is a Ghetto."