In fact, this album was the first to define the term 'ambient music'. It contains just four songs, rationally named 1/1, 2/1, 1/2 and 2/2. Pitchfork chooses the first and you cannot really argue with that. It is a stunning, gentle, ultra-slow piano driven piece of music. It is the musical parallel to a spa massage!
Eno came up with the idea for the record while being stuck at the Cologne Bonn Airport and being annoyed with the boring music there. Since then the album has been used in the LaGuardia Airport in New York. In fact, this can be seen as Eno's crusade against mindless muzak; to reestablish the power of music to create an interesting surrounding influence or atmosphere. You can only describe his project as extremely succesful. No matter your level of attention to it, 1/1 is a highly pleasurable experience.