Hi,

Not quite correct.

What happened that made it look like it had died was that almost all FM Radio Stations had been bought by Corporate Structures, by 1980, and this took away a precious bunch of new sounds. It looks like it "died", but how could it have died, if it is still alive and well, and selling? AND, above all ... REMEMBERED.

That FM radio dial provided massive sales to a lot of bands, that kinda went off the air at that moment, and generally, when you can't hear things, they tend to appear to be gone. 

Prog Rock never died ... it's the audience that meekly didn't care, and allowed the FCC to change the rules in America, so the corporate standard could be maintained and would control things for a long time to come. BUT, remember, the FCC is made up of many of these corporate folks now ... and they do what they want, and have for 40 years. One rule that really hurt was when a huge corporate entity was allowed to own more than several stations in one place ... all of a sudden you (really!!!) had the same music in all of the stations, even though it would be classic in one and quasi classic (or classic 2) in the other!

The ARTS never die my friend ... we just fail to look at them, because the advertising takes your eyes away! Don't EVER forget that!