You undoubtedly know who Brian Eno is, given that he has attained a legendary status in the world of electronic and ambient music. Cluster, while certainly not as well known, were an important group in their day and are in the same boat as Eno insomuch as both of their earlier works act as a precursor ambient music, albeit even earlier in Cluster's case. This collaboration is a very nice piece of ambient electronic that lends itself to some progressive electronic leanings as well. The use of airy piano and slight drones mixed with repetition makes for a hypnotizing and altogether relaxing listen, especially with tracks such as the opener, "Wehrmut" and "Die Bunge". It's not especially dynamic, and things mostly keep a dreamy state of being, but somewhat tense moments do arrive now and again to help break up the sound when it begins to stale. Certainly, if you're looking for some great study music or just something to relax to, Cluster & Eno is a good choice.