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. Scottish funk group Average White Band's self-titled sophomore album dominated the charts after its 1974 release, with the hit track "Pick Up the Pieces" peaking at No. 1 on Billboard's Hot 100.