How would anyone come up with a boundry of what a Genre or catagory of music is about?
Remember when you could be happy and 'Gay'.
I remember a good few years back, rappers taking the genre 'R&B' Rythmn and Blues for themselves. That made me angry.
Maybe just maybe Britney Spears 'Queen of Pop' is making (dare i mention it) progressive pop - or a load of studio drivel?
So what on earth is Progressive Rock Music Today?
Now personally I remember and still do think of Progressive Rock as experimental Psycadelica. e.g. Sargent Peppers, Yes, Genisis (anything with a bit of an immagination).
I wonder what are your boundaries when it comes to this genre.
