Don't get me wrong...I love this 'site and its groovy prog fans, but something has gone dreadfully afoul on PA. The good old Grateful Dead is not included on the site!
The band recorded albums designed as "a musical soundtrack to the acid experience"...the sound was obviously not for the mass market....it wasn't going to sell like a Byrds, Love or Buff Spring record, but they put that aside for the music. They absolutely pushed the limits of what was considered rock music at the time. This barrier bending is what I consider the definition of prog rock....not John Cage avant-garde minimalism, or late era Coltrane's avant-jazz, or Lenny Bruce's avant-comedy, but rock 'n' roll. The Grateful Dead shouldn't be limited to the tag of a California psychedelia band in the vien of the Doors, the Airplane or Hot Tuna....they created their own sound by blending everything from jug band music to Coltrane....they expanded so many people's taste in music just by being so adept and versatile. Damn, man, Phil Lesh was versed in avant-jazz composition and Garcia was fascinated withthe sounds created by Ornette Coleman, Albert Ayler, Coltrane. Anyone who's ever been to a Dead show understand, the music really took you places....Jerry could play jazzy, spacy, funky, folksy, bluesy, trancey, Zappa-y....you name it, it could be heard at a Dead show. Their studio LPs are widely known to be let downs after hearing or seeing them live, but we can't allow that to skewer our opinions of the Dead.
I know that some fans think that we've blurred the meaning of prog with some of the bands that have been recently added....hell, I'm one of 'em, but if some of that lot can be considered prog...
I also know a lot of prog fans don't have that much experience with the Dead...I know that it's mainly an American thing, though there are legions of Dead fans all over the world.
I'm typically not one to be so daring as to suggest inclusion of a band to PA, but the Dead are a really special group that deserve more recognition for their spacy, proggy side.