Tarkus

Tarkus is the second studio album by English progressive rock band Emerson, Lake & Palmer, released on 4 June 1971 by Island Records. Following their debut tour across Europe during the second half of 1970, the group paused touring commitments in January 1971 to record a new album at Advision Studios in London. Greg Lake produced the album with Eddy Offord as engineer. Side one features the 20-minute conceptual title track written by keyboardist Keith Emerson, the opening of which created friction between Lake and Emerson that almost split the group, but Lake agreed to pursue it and contributed musical ideas for it and wrote the lyrics.