Face

I guess that's why I gave up on trying to remember genre labeling a long time ago, I can't remember (post, prog and maths are all pretty intechangeable really IMO) what half the ones I listen to technically "are". And some songs that are supposedly different genres I find more alike than ones from the same genre..simply because of the artist.

jawbreaker

I believe when prog rock bands burst in late sixties and mostly in early seventies, they weren't even tagged "prog" but art rock.
Regarding the question of this thread, music can be technical without being prog (a lot of late nineties thrash bands that turned technical, the shredders of the eighties), and music can be prog without being particularly technical (mid-seventies pink floyd, marillion). However, regarding prog death like later Death albums, Atheist, Cynic, Pestilence, Nocturnus, they are both technical and progressive in spirit, so sometimes it's difficult to separate one from the other.

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