Mistakes aplenty!
Garden of Dreams by FK is not an epic. It is many pieces stuck together.
Echoes is not an epic. It's a jam/space back and forth.
Tales I would argue is not a true "concept album". It's four pieces of music by each member. Sort of like Fragile, on steroids.
Syncopation is not particular to prog. Ooooh syncopation!!! Every song has syncopation, even "Row Row Your Freaking Boat".
Madness as a common theme? Try the grunge or metal for that.
Like the overuse of Dream Theater. Thought they weren't prog.
I always thought Rush and Devo used the same meter in many tunes (Rush was cited as an example, Devo is not).
Close to the edge is NOT a four-part song. It has an intro into a theme, and ok another part, but returns to the theme. That's two parts, if you're scoring at home.
Godspeed is said to include "the aesthetic sensibilities" of punk rock. I need several thousand beers to figure that one out!
I like the last line about Tool. They don't know what to classify it as! Love it!
Two of my favorite bands are defined as progressive - King's X and XTC. Let's get 'em on the playlist, then!
Even the Galactic Cowboys are in there! (only cause they toured with king's x, no doubt). Too bad the Butthole Surfers didn't tour with them too, they'd be in there.
I get such a kick out of this pigeon-holing.