In 1975, Brian Eno released his epochal Discreet Music replete with an ambient music manifesto as well as a diagram making explicit the system he used-- a sort of rudimentary analog phase machine-- to create the record. If Discreet Music demonstrated the aural wallpaper aspect of the system of overlapping loops (legend has it hospitals regularly piped in the LP during childbirth), Eno's earlier experiments with guitarist Robert Fripp were somewhat less, well, discreet. In fact, in a lot of ways the equally epochal Fripp/Eno albums No Pussyfooting (1973) and Evening Star (1975) brought ambient music firmly to the foreground.
