Although Dave Gilmour stated around the time of its release and on a radio interview in 1992 that the album contained no studio overdubbing whatsoever, he embellished the tracks during mixing with some extra acoustic guitar on "Comfortably Numb", according to engineer Buford Jones. In addition, some harmonies were replaced by studio re-takes: Richard Wright re-did his vocal on "Us and Them" and Sam Brown replaced Rachel Fury's part in "Comfortably Numb"but the rest of the album was what was played at the shows.