Originally Posted by
AJSki2fly
Not really, they were psychedelic at the time and were experimenting, and most of their songs were not that long. It is generally accepted that In the Court of the Crimson King by King Crimson was the first officially sited prog rock album in 1969, mainly because it had clear cross over with its use of jazz chords and extended song structures and odd song structures.Even early Genesis did not fall into the prog rock domain, until their second album. Apart from Yes, later Pink Floyd, Deep Purple and others one band often overlooked and a main driver in prog rock was and still is Hawkwind. Often dubbed as space rock mainly due to their material a lot of it is very much in the prog rock vein.