[2] As indicated by the title (and like their previous album), all the tracks were written, performed and produced by Ralf Hütter and Florian Schneider, with the sessions engineered by the influential Konrad "Conny" Plank.

The album has a fuller and more polished sound quality than previous efforts, and this is clearly due to the use of a number of commercial recording studios in addition to Kraftwerk's own yet-to-be-named Kling Klang.

The colour photograph on the back of the cover gives a vivid impression of the bohemian state of Kraftwerk's own facilities at the time – including egg-box trays pasted, nailed, or stuck on the walls as acoustic treatment.

"[2] The album is still almost entirely instrumental (some wordless vocalising appears in "Tanzmusik", and "Ananas Symphonie" features the band's first use of a machine voice created by an early prototype vocoder, a sound which would later become a Kraftwerk trademark).

Instrumentation begins to show more obvious use of synthesizers (Minimoog and EMS Synthi AKS[5]), but most melodic and harmonic keyboard parts are performed on Farfisa electronic piano/organ.