This follow-up to David Gilmours late 70s debut is a Bob Ezrin-produced post-WALL effort, & as such it incorporates the harder sounds Gilmour had become accustomed to during the WALL sessions. Written & released around the time of Roger Waters exit from Pink Floyd, this album foreshadows the Floyds future musical direction. Combining layered vocals with a heavily looped guitar sound, " Until We Sleep" begins ABOUT FACE with an almost Byrds-like quality, while the