This album was originally recorded in 1973 in Germany under a working title of Casablanca Moon with Faust as Slapp Happy's backing band, but Polydor Germany rejected it. After moving to London and signing with Virgin Records, Slapp Happy re-recorded it (at Virgin's request) and it was released in 1974 as Slapp Happy. Virgin later re-issued the album as Casablanca Moon.
It was not until 1980 that Recommended Records released the original recording (with Faust) as Acnalbasac Noom (the title Casablanca Moon reversed). For a comparison of Slapp Happy and Acnalbasac Noom, see Acnalbasac Noom.
Writing in The Rough Guide to Rock, Mark Ellingham noted: "Slapp Happy found themselves at Virgin's Manor studios, recording the album with a virtual chamber orchestra of musicians."