High Quality Content by WIKIPEDIA articles! A Momentary Lapse of Reason is the thirteenth studio album by English progressive rock group Pink Floyd. It was released in the UK and US in September 1987. In 1985 guitarist David Gilmour began to assemble a group of musicians to work on his third solo album. At the end of 1986 he changed his mind, and decided that the new material would instead be included in a new Pink Floyd album. Subsequently Pink Floyd drummer Nick Mason and keyboardist Richard Wright were brought on board for the project. Although for legal reasons Wright could not be re-admitted to the band, he and Mason helped Gilmour to craft what would become the first Pink Floyd album since the departure of lyricist and bass guitarist Roger Waters in December 1985.