Ambient music = music that is "actively listened to with attention or as easily ignored, depending on the choice of the listener", and that exists on the "cusp between melody and texture" sez Brian Eno. Not sure if all these tracks fit the bill. They do what I wanted however, which is to provide a backdrop for when I am working at my desk. I have included Grouper, some rinky tink tink keyboards, mellower krautrock from Wolfgang Reichmann, Cluster and others with some kompakt goodness at the end from Gui Boratto
More Len – The Colour Box. Used by the BPO to sell stamps.