Pink Floyd

Most serious progressive bands are keyboard and classically influenced. The concern for musical quality is very high. Sometimes too high IMO. This is what made so much prog tedious. More focus was applied to the musicians needs than to that of the listeners. That being said, Pink Floyd were always about the listeners. They came from the British sixties underground where people actually sat and listened to the music. Floyds wild experimentation of sound and light, the sonic experiance,was their main focus-to thrill the audience.

I feel as far as progessive rock and Pink Floyd are concerned, prog is something Floyd later grew into. Atom Heart Mother is a cross over from psychedelic to a more progressive attude. Certainly, Darkside up to and including The Wall. Meddle and Obscured? not sure. All I know is the early Floyd is pure psychedelic rock with a touch of the avante garde.

ryba wrote: PF are blues band making rather simple yet often very impressive music.

I don't think that PF is a blues band but Gilmour certainly is a blues-based guitar player, unlike most prog rock guitar players. This is one of the points that make Pink Floyd music different from other prog rock acts.