Maybe the problem here is the definition "prog".
Maybe, you could name Düün II "prog Kraut rock" and Kraftwerk or Cluster and so on "electronic Kraut rock" - after all, musical genres often intermingle with each other. But Kraut defenitely isn't a subgenre of prog rock, but they had many artist and traits in common.
The term "progressive rock/metal" is a very vague one and as itself a problem, especially in prog metal (Just name DT or PF as reference and you go as prog metal -.-). Early on, the genre meant "inovative and intellectually", but nowadays, it's more like "complex, heavy-minded and epic". -.- It's one of the vaguest genres overall - but most of it's subgenres are relatively well defined.
I think that's the case with Kraut. It's "german music in the 60s & 70s, often innovative, either prog rock or electronical", or something like that.
But I must admit, it's not a genre I listen to very often. I'm more into the transcentend, minimalistic type of prog rock/metal, I often cross the line to Post Rock (yet another genre that is very hard to distinguish from prog) and relatively cold metal.
I recommend "Sieges Even - A Sense of Change" or "The Art Of Navigating by the Stars". Both prog metal masterpieces. And even from germany ;)
And for something beautiful "Autumn Chorus - The Village To The Vale". Even though it's a bit off topic.
Edited by AlfredKeppler - 5/19/14 at 2:09pm