"Corporal Clegg" is the first Pink Floyd song to address issues of war, a theme which would endure throughout the career of Waters as a songwriter for the band, culminating on the 1983 album "The Final Cut". The title track was originally written as a new version of "Nick's Boogie". The track is titled as four parts on "Ummagumma". A staple in the band's live set until summer 1972, a live version of the song was recorded on 27 April 1969 at the Mothers Club in Birmingham for inclusion on "Ummagumma".